51.
Manual of North American Diptera - Primary Source Edition
by Samuel Wendell Williston
ISBN: 9781293887431
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Water Reptiles of the Past and Present
by Williston, Samuel Wendell, ...
ISBN: 9781341840180
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The Osteology of the Reptiles
by William K. 1876- Gregory, S...
ISBN: 9781296575687
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Synopsis of the North American Syrphidae
by Williston, Samuel Wendell
ISBN: 9780598368928
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Water Reptiles of the Past and Present
by Williston, Samuel Wendell
ISBN: 9780598771797
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The Evolution of Vertebrae, And, the Osteology of Some American Permian Vertebrates, III (Cl...
by Williston, Samuel Wendell, ...
ISBN: 9781334652547
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60.
Water Reptiles of the Past and Present (Classic Reprint)
by Williston, Samuel Wendell, ...
ISBN: 9781330030165
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61.
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Synopsis of the Families and Genera of North American Diptera : Exclusive of the Genera of t...
by Williston, Samuel Wendell
ISBN: 9781347866511
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Synopsis of the North American Syrphidae
by Williston, Samuel Wendell
ISBN: 9781344657587
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Manual of North American Diptera
by Williston, Samuel Wendell, ...
ISBN: 9781341833076
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Synopsis of the Families and Genera of North American Diptera, Exclusive of the Genera of th...
by Williston, Samuel Wendell 1...
ISBN: 9781363450190
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Permo-Carboniferous Vertebrates from New Mexico
by Case, E. C. (Ermine Cowles)...
ISBN: 9781363731831
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Permo-Carboniferous Vertebrates from New Mexico
by Case, E. C. (Ermine Cowles)...
ISBN: 9781363731862
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Manual of North American Diptera
by Williston, Samuel Wendell 1...
ISBN: 9781363837724
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Manual of North American Diptera
by Williston, Samuel Wendell 1...
ISBN: 9781363837755
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Manual of the Families and Genera of North American Diptera
by Williston, Samuel Wendell 1...
ISBN: 9781371479152
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Manual of the Families and Genera of North American Diptera
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ISBN: 9781371479169
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Manual of the Families and Genera of North American Diptera
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ISBN: 9781371549848
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Manual of the Families and Genera of North American Diptera
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ISBN: 9781371549824
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Paleontology : Part II. Carboniferous and Cretaceous
by Williston, Samuel Wendell 1...
ISBN: 9781371981907
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