APA aipamena

Colbert, E. H. (1969). Evolution of the vertebrates: A history of the backboned animals through time (2nd ed.).

Chicago Style aipamena

Colbert, Edwin H. Evolution of the Vertebrates: A History of the Backboned Animals Through Time. 2nd ed. 1969.

MLA aipamena

Colbert, Edwin H. Evolution of the Vertebrates: A History of the Backboned Animals Through Time. 2nd ed. 1969.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.