APA
(1983). Medical Letter on Drugs and Therapeutics. New Rochele: Medical Letter Inc.
Chicago
1983. Medical Letter on Drugs and Therapeutics. New Rochele: Medical Letter Inc.
Harvard
(1983). Medical Letter on Drugs and Therapeutics. New Rochele: Medical Letter Inc.
MLA
Medical Letter on Drugs and Therapeutics. New Rochele: Medical Letter Inc. 1983.