Gaya APA

Herfindal, E, T, &, G, D, R. (2000). Textbook of Therapeutics (7). Philadelphia: Lippincott Williams & Wilkins.

Gaya MLA

Herfindal, Eric, T., &, Gourley,, Dick, R.. "Textbook of Therapeutics". 7 Philadelphia: Lippincott Williams & Wilkins, 2000. Text.