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

APA Citation Edition Citation

Washburn, S. L. (1959). Speculations on the interrelations of the history of tools and biological evolution. - Detroit, MI.

Chicago Citation Edition Citation

Washburn, Sherwood L. Speculations on the Interrelations of the History of Tools and Biological Evolution. - Detroit, MI. 1959.

MLA Citation Edition Citation

Washburn, Sherwood L. Speculations on the Interrelations of the History of Tools and Biological Evolution. - Detroit, MI. 1959.