Gaya APA
Kardong, K, V. (2006).
Vertebrates: comparative anatomy, function, evolution (5 th ed.).
New York:
Mc. Gravo Hill.
Gaya MLA
Kardong, Kenneth, V..
"Vertebrates: comparative anatomy, function, evolution".
5 th ed.
New York:
Mc. Gravo Hill,
2006.
Text.