APA Style

Opie, L, H., Gersh, B, J. (2009). Drugs for the heart: Expert Consult - Online and Print 7th ed . Philadelphia: Philadelphia: WB Saunders Comp., 1983.

MLA Style

Opie, Lionel, H., Gersh, Bernard, J. "Drugs for the heart: Expert Consult - Online and Print 7th ed". Philadelphia: Philadelphia: WB Saunders Comp., 1983, 2009. BOOKS.