Vial, J. L. (1966). Variation in altitudinal populations of the salamander, Bolitoglossa subpalmata, on the Cerro de la Muerte, Costa Rica.
शिकागो स्टाइल उद्धरणVial, James L. Variation in Altitudinal Populations of the Salamander, Bolitoglossa Subpalmata, On the Cerro De La Muerte, Costa Rica. 1966.
एमएलए उद्धरणVial, James L. Variation in Altitudinal Populations of the Salamander, Bolitoglossa Subpalmata, On the Cerro De La Muerte, Costa Rica. 1966.
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