APA aipamena

Duellman, W. E. (1963). A New Species of Tree Frog, Genus Phyllomedusa, from Costa Rica.

Chicago Style aipamena

Duellman, William E. A New Species of Tree Frog, Genus Phyllomedusa, From Costa Rica. 1963.

MLA aipamena

Duellman, William E. A New Species of Tree Frog, Genus Phyllomedusa, From Costa Rica. 1963.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.