Dyfyniad APA

Colbert, E. H. (1969). Evolution of the vertebrates: A history of the backboned animals through time. New York: Wiley.

Dyfyniad Arddull Chicago

Colbert, Edwin Harris. Evolution of the Vertebrates: A History of the Backboned Animals Through Time. New York: Wiley, 1969.

Dyfyniad MLA

Colbert, Edwin Harris. Evolution of the Vertebrates: A History of the Backboned Animals Through Time. New York: Wiley, 1969.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.