APA aipamena

Vial, J. L. (1966). Variation in altitudinal populations of the salamander, Bolitoglossa subpalmata, on the Cerro de la Muerte, Costa Rica.

Chicago Style aipamena

Vial, James L. Variation in Altitudinal Populations of the Salamander, Bolitoglossa Subpalmata, On the Cerro De La Muerte, Costa Rica. 1966.

MLA aipamena

Vial, James L. Variation in Altitudinal Populations of the Salamander, Bolitoglossa Subpalmata, On the Cerro De La Muerte, Costa Rica. 1966.