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Showing 51 - 75 of 430 Results
51.
The birds of North and middle America Volume 6 ; a descriptive catalogue of the higher group...
The birds of North and middle America Volume 6 ; a descriptive catalogue of the higher group... by Robert Ridgway ISBN: 9781231231951 List Price: $44.17

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52.
Birds of North and Middle America Volume 8; a Descriptive Catalogue of the Higher Groups, Ge...
Birds of North and Middle America Volume 8; a Descriptive Catalogue of the Higher Groups, Ge... by Ridgway, Robert ISBN: 9781232063070 List Price: $33.77

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53.
Birds of North and Middle America Volume � 3; a Descriptive Catalogue of the Higher Groups, ...
Birds of North and Middle America Volume � 3; a Descriptive Catalogue of the Higher Groups, ... by Ridgway, Robert ISBN: 9781232241287 List Price: $41.20

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54.
Color Standards and Color Nomenclature
Color Standards and Color Nomenclature by Ridgway, Robert 1850-1929 ISBN: 9781363153749 List Price: $23.95

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55.
The birds of North and middle America
The birds of North and middle America by Ridgway Robert ISBN: 9785518638662 List Price: $44.95

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56.
Color Standards and Color Nomenclature
Color Standards and Color Nomenclature by Robert Ridgway ISBN: 9780344114892 List Price: $42.95

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57.
Color Standards and Color Nomenclature - Scholar's Choice Edition
Color Standards and Color Nomenclature - Scholar's Choice Edition by Robert Ridgway ISBN: 9781295957972 List Price: $27.75

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58.
Color Standards and Color Nomenclature
Color Standards and Color Nomenclature by Ridgway, Robert, Robert Rid... ISBN: 9781375622301 List Price: $15.95

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59.
Death of Scgb
Death of Scgb by Ridgway, J. Robert ISBN: 9780533115433 List Price: $12.95

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60.
The Ornithology of Illinois (Volume 1)
The Ornithology of Illinois (Volume 1) by Ridgway, Robert ISBN: 9781153084857 List Price: $46.29

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61.
A Nomenclature of Colors for Naturalists; And Compendium of Useful Knowledge for Ornithologi...
A Nomenclature of Colors for Naturalists; And Compendium of Useful Knowledge for Ornithologi... by Ridgway, Robert ISBN: 9781153059480 List Price: $17.50

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62.
The Birds of North and Middle America: A Descriptive Catalogue of the Higher Groups, Genera,...
The Birds of North and Middle America: A Descriptive Catalogue of the Higher Groups, Genera,... by Ridgway, Robert, Friedmann,... ISBN: 9781143256325 List Price: $54.75

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63.
Nomenclature of North American Birds Chiefly Contained in the United States National Museum
Nomenclature of North American Birds Chiefly Contained in the United States National Museum by Ridgway, Robert ISBN: 9781152153356 List Price: $20.00

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64.
A Nomenclature Of Colors For Naturalists And Compendium Of Useful Knowledge For Ornithologis...
A Nomenclature Of Colors For Naturalists And Compendium Of Useful Knowledge For Ornithologis... by Ridgway, Robert ISBN: 9781120125286 List Price: $22.95
$68.49
65.
Nomenclature Of North American Birds: Chiefly Contained In The United States National Museum...
Nomenclature Of North American Birds: Chiefly Contained In The United States National Museum... by Ridgway, Robert ISBN: 9781120747020 List Price: $18.95
$61.04
66.
The Ornithology of Illinois (Volume 2 pt. 1)
The Ornithology of Illinois (Volume 2 pt. 1) by Ridgway, Robert ISBN: 9781153084888 List Price: $32.48

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67.
The Ornithology of Illinois (Volume 2: 1)
The Ornithology of Illinois (Volume 2: 1) by Ridgway, Robert ISBN: 9781153392648 List Price: $37.49

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68.
He Walks Amongst the Spirits
He Walks Amongst the Spirits by Robert Ridgway ISBN: 9780805951592 List Price: $26.00
$74.42
69.
Behavior-Modifying Chemicals for Insect Management Applications of Pheromones and Other Attr...
Behavior-Modifying Chemicals for Insect Management Applications of Pheromones and Other Attr... by Ridgway, R. L., Silverstein... ISBN: 9780824781569 List Price: $250.00
$66.08 (Save 73%)
70.
A Nomenclature Of Colors For Naturalists And Compendium Of Useful Knowledge For Ornithologis...
A Nomenclature Of Colors For Naturalists And Compendium Of Useful Knowledge For Ornithologis... by Ridgway, Robert ISBN: 9781120226372 List Price: $37.95

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71.
The Humming Birds
The Humming Birds by Ridgway, Robert ISBN: 9781152545533 List Price: $22.07

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72.
Color Standards and Color Nomenclature
Color Standards and Color Nomenclature by Ridgway, Robert ISBN: 9781144914835 List Price: $27.75

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73.
The Ornithology of Illinois. Part I. Descriptive Catalogue
The Ornithology of Illinois. Part I. Descriptive Catalogue by Ridgway, Robert ISBN: 9781152152953 List Price: $37.95

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74.
Birds of the Galapagos Archipelago
Birds of the Galapagos Archipelago by Ridgway, Robert ISBN: 9781144798305 List Price: $25.75

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75.
Catalogue of the Aquatic and Fish-Eating Birds exhibited by the United Staes National Museum
Catalogue of the Aquatic and Fish-Eating Birds exhibited by the United Staes National Museum by United States National Muse... ISBN: 9781117665177 List Price: $15.75

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