Gaya APA

Papyrus, . (2011). Why? The Reptiles and Amphibian Reptilia dan Amfibi . Jakarta: PT. Elex media komputindo.

Gaya MLA

Papyrus, . "Why? The Reptiles and Amphibian Reptilia dan Amfibi". Jakarta: PT. Elex media komputindo, 2011. Text.