APA (7th ed.) Citation

O'Neil, M. J. (2001). The merck index: An encyclopedia of chemicals, drugs, and biologicals (13th ed.). Merck.

Chicago Style (17th ed.) Citation

O'Neil, Maryadele J. The Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals. 13th ed. Whitehouse Station: Merck, 2001.

MLA (9th ed.) Citation

O'Neil, Maryadele J. The Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals. 13th ed. Merck, 2001.