Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Citation Edition Citation

Gregory, W. K. (1933). The new anthropogeny: Twenty-five stages of vertebrate evolution, from Silurian Chordate to man.- Washington, D.C.

Chicago Citation Edition Citation

Gregory, William K. The New Anthropogeny: Twenty-five Stages of Vertebrate Evolution, from Silurian Chordate to Man.- Washington, D.C. 1933.

MLA Citation Edition Citation

Gregory, William K. The New Anthropogeny: Twenty-five Stages of Vertebrate Evolution, from Silurian Chordate to Man.- Washington, D.C. 1933.