O’Shea, M. (2001). Reptiles and amphibians. New York: DK Pub.
Chicago Style aipamenaO’Shea, Mark. Reptiles and Amphibians. New York: DK Pub, 2001.
MLA aipamenaO’Shea, Mark. Reptiles and Amphibians. New York: DK Pub, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.