1.
Field Guide to Eastern Butterflies
by Mariner Books Staff, Maliku...
ISBN: 9780395904534
List Price: $23.00
2.
Field Guide to Western Butterflies
by Opler, Paul A., Wright, Amy...
ISBN: 9780395791516
List Price: $24.00
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Moths of Western North America
by Powell, Jerry A., Opler, Pa...
ISBN: 9780520251977
List Price: $95.00
4.
Field Guide to Eastern Butterflies
by Opler, Paul A., Malikul, Vi...
ISBN: 9780395632796
List Price: $17.95
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Peterson First Guide to Butterflies and Moths
by Mariner Books Staff, Opler,...
ISBN: 9780395906651
List Price: $5.95
6.
The Complete Book of North American Butterflies
by Smart, Paul, Opler, Paul A.
ISBN: 9781607102762
List Price: $18.95
7.
Field Guide to Western Butterflies
by Opler, Paul A., Wright, Amy...
ISBN: 9780395791523
List Price: $32.00
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Peterson First Guide to Butterflies and Moths
by Opler, Paul A., Wright, Amy...
ISBN: 9780395670729
List Price: $4.95
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Peterson Flashguides Butterflies More Than 100 Species- All the Butterflies Most Commonly Se...
by Opler, Paul A., Peterson, R...
ISBN: 9780395829967
List Price: $8.95
10.
Butterflies of Eastern North America
by Strawn, Susan, Strawn, Susa...
ISBN: 9780911797534
List Price: $4.95
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Butterflies of North America An Activity and Coloring Book
by Opler, Paul
ISBN: 9781570984358
List Price: $9.95
12.
Butterflies of the American West: A Coloring Album - Paul A. Opler - Paperback
by Opler, Paul A., Strawn, Susan
ISBN: 9780911797435
List Price: $3.95
13.
Butterflies East and West: A Book to Color - Paul A. Opler - Paperback
by Opler, Paul A., Strawn, Susan
ISBN: 9781879373457
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Biology, Ecology and Host Specificity of Microlepidoptera Associated with Quercus Agrifolia ...
by Opler, Paul A.
ISBN: 9780520095007
List Price: $9.25
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Common Names of North American Butterflies
by Miller, Jacqueline Y., Ople...
ISBN: 9780788155512
List Price: $16.00
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Butterflies East of the Great Plains: An Illustrated Natural History
by Opler, Paul A., Krizek, Geo...
ISBN: 9780801829383
List Price: $49.50
17.
Field Guide to Eastern Butterflies
by Opler, Paul A., Malikul, Vi...
ISBN: 9780395364529
List Price: $24.95
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19.
Peterson First Guide to Butterflies and Moths
by Paul A. Opler, Mariner Books
ISBN: 9781417634507
List Price: $15.95
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Leafmining Moths of the Genus Cameraria Associated with Fagaceae in California (Lepidoptera,...
by Opler, Paul A.
ISBN: 9780598174345
List Price: $30.00
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Biology, Ecology, and Host Specificity of Microlepidoptera Associated with Quercus Agrifolia...
by Opler, Paul A.
ISBN: 9780598180681
List Price: $33.20