Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.