APA

Pyburn W. F., .New species of Dimorphic tree frog, genus Hyla (<Amphibia: Anura: Hylidae>), from the Vaupés river of Colombia. : .

Chicago

Pyburn William F, .New species of Dimorphic tree frog, genus Hyla (<Amphibia: Anura: Hylidae>), from the Vaupés river of Colombia. : .

Harvard

Pyburn W. F., .New species of Dimorphic tree frog, genus Hyla (<Amphibia: Anura: Hylidae>), from the Vaupés river of Colombia. : .

MLA

Pyburn William F, .: . .