Cita APA (7a ed.)

Savage,Jay M. (1980). A handlist with preliminary keys to the herpetofauna of Costa Rica. Allan Hancock Foundation.

Cita Chicago Style (17a ed.)

Savage,Jay M. A Handlist with Preliminary Keys to the Herpetofauna of Costa Rica. California - EEUU: Allan Hancock Foundation, 1980.

Cita MLA (8a ed.)

Savage,Jay M. A Handlist with Preliminary Keys to the Herpetofauna of Costa Rica. Allan Hancock Foundation, 1980.