Gill, D. E. (1998). The anurans and the reptiles of Palo Verde National Park Guanacaste province, Costa Rica. [San José, Costa Rica]: [editor no identificado].
Chicago Style CitationGill, Douglas E. The Anurans and the Reptiles of Palo Verde National Park Guanacaste Province, Costa Rica. [San José, Costa Rica]: [editor no identificado], 1998.
MLA CitationGill, Douglas E. The Anurans and the Reptiles of Palo Verde National Park Guanacaste Province, Costa Rica. [San José, Costa Rica]: [editor no identificado], 1998.
Warning: These citations may not always be 100% accurate.