APA (7th ed.) Citation

Long, J. W. (1991). The essential guide to prescription drugs (1991 ed.). HarperCollins.

Chicago Style (17th ed.) Citation

Long, James W. The Essential Guide to Prescription Drugs. 1991 ed. New York: HarperCollins, 1991.

MLA (8th ed.) Citation

Long, James W. The Essential Guide to Prescription Drugs. 1991 ed. HarperCollins, 1991.

Warning: These citations may not always be 100% accurate.