Gaya APA

OPIE, L, H., GERSH, B, J. (2009). Drugs for the heart (7th ed.). Philadelphia: Elsevier Saunders.

Gaya MLA

OPIE, Lionel, H.., GERSH, Bernard, J. "Drugs for the heart". 7th ed. Philadelphia: Elsevier Saunders, 2009. Buku.