Cita APA

Duellman, W. E. 1. (1970). The hylid frogs of middle America. [Kansas]: Museum of Natural History, The University of Kansas.

Citación estilo Chicago

Duellman, William Edward 1930-. The Hylid Frogs of Middle America. [Kansas]: Museum of Natural History, The University of Kansas, 1970.

Cita MLA

Duellman, William Edward 1930-. The Hylid Frogs of Middle America. [Kansas]: Museum of Natural History, The University of Kansas, 1970.