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1
The avifauna of northern Latin America a symposium held at the Smithsonian Institution, 13-15 April 1966 /
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Government Document Online Book -
2
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3
An illustrated catalog of the Neotropic Arctiinae types in the United States National Museum (Lepidoptera: Arctiidae)
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Government Document Online Book -
4
Floral morphology and systematics of Lamourouxia (Scrophulariceae: Rhinanthoideae)
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Government Document Online Book -
5
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6
Studies of neotropical caddisflies, XVIII new species of Rhyacophilidae and Glossosomatidae (Trichoptera) /
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Government Document Online Book -
7
A study of the genus Schistocarpha (Heliantheae : Asteraceae) /
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Government Document Online Book -
8
A revision of the lichen genus Hypotrachyna (Parmeliaceae) in tropical America /
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Government Document Online Book -
9
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10
Geographic and climatic relationships of avifaunas with special reference to comparative distribution in the neotropics
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Government Document Online Book -
11
Ctenuchid moths of Ceramidia Butler, Ceramidiodes Hampson, and the caca species group of Antichloris Hübner
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Government Document Online Book -
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