APA (7th ed.) Citation

Medical Economics Company. (1999). Physicians' desk reference for nonprescription drugs and dietary supplements. Medical Economics Co..

Chicago Style (17th ed.) Citation

Medical Economics Company. Physicians' Desk Reference for Nonprescription Drugs and Dietary Supplements. Montvale, NJ: Medical Economics Co., 1999.

MLA (9th ed.) Citation

Medical Economics Company. Physicians' Desk Reference for Nonprescription Drugs and Dietary Supplements. Medical Economics Co., 1999.