Kushlan, JA; Mazotti, F. Historic and present distribution of the American crocodile in Florida.. Journal of Herpetology. 1989, 23 (1): 1–7. JSTOR 1564309. doi:10.2307/1564309.引文使用过时参数coauthor (帮助)
earthsbirthday.org
American Crocodile. Rainforest Exploration. Earth's Birthday Project. [2008-12-12]. (原始内容存档于2009-02-14).
Kushlan, JA; Mazotti, F. Historic and present distribution of the American crocodile in Florida.. Journal of Herpetology. 1989, 23 (1): 1–7. JSTOR 1564309. doi:10.2307/1564309.引文使用过时参数coauthor (帮助)