Gaya APA

Pratt, W, B., Taylor, P. (1990). Principles of Drug Action : The Basis of Pharmacology (3rd). New York: Churchill Livingstone.

Gaya MLA

Pratt, William, B.., Taylor, Palmer. "Principles of Drug Action : The Basis of Pharmacology". 3rd New York: Churchill Livingstone, 1990. Text.