APA استشهاد

Freeman, S. (2011). Biological science (4th ed.). Benjamin Cummings.

استشهاد بنمط شيكاغو

Freeman, Scott. Biological Science. 4th ed. Boston: Benjamin Cummings, 2011.

MLA استشهاد

Freeman, Scott. Biological Science. 4th ed. Benjamin Cummings, 2011.