Gaya APA

Tortora, G, J., Anagnostakos, N, P. (1990). Principles of Anatomy and Physiology (Sixth ed.). New York: Harper International.

Gaya MLA

Tortora, Gerard, J.., Anagnostakos, Nicholas, P.. "Principles of Anatomy and Physiology". Sixth ed. New York: Harper International, 1990. Text.