Colbert, E. H. (1969). Evolution of the vertebrates: A history of the backboned animals through time (2nd ed.).
Chicago Edition CitationColbert, Edwin H. Evolution of the Vertebrates: A History of the Backboned Animals Through Time. 2nd ed. 1969.
MLA Edition CitationColbert, Edwin H. Evolution of the Vertebrates: A History of the Backboned Animals Through Time. 2nd ed. 1969.
Warning: These citations may not always be 100% accurate.