APA استشهاد

Volpe, E. P. (1996). Understanding evolution (5th ed.). Universal Book Stall.

استشهاد بنمط شيكاغو

Volpe, E Peter. Understanding Evolution. 5th ed. New Delhi: Universal Book Stall, 1996.

MLA استشهاد

Volpe, E Peter. Understanding Evolution. 5th ed. Universal Book Stall, 1996.