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

APA Citation Edition Citation

Gregory, W. K. (1931). Certain critical stages in the evolution of the vertebrate jaws. - St. Louis, MO.

Chicago Citation Edition Citation

Gregory, William K. Certain Critical Stages in the Evolution of the Vertebrate Jaws. - St. Louis, MO. 1931.

MLA Citation Edition Citation

Gregory, William K. Certain Critical Stages in the Evolution of the Vertebrate Jaws. - St. Louis, MO. 1931.