Savage, J. M., & Heyer, W. R. (1968). The tree-frogs (Family Hylidae) of Costa Rica: Diagnosis and distribution.
Chicago Style citaatSavage, Jay M., en W. Ronald Heyer. The Tree-frogs (Family Hylidae) of Costa Rica: Diagnosis and Distribution. 1968.
MLA citatieSavage, Jay M., en W. Ronald Heyer. The Tree-frogs (Family Hylidae) of Costa Rica: Diagnosis and Distribution. 1968.
Let op: Deze citaties zijn niet altijd 100% accuraat.