APA (7th ed.) Citation

Budavari, S., O'Neil, M. J., & Smith, A. (1989). The Merck Index: An Encyclopedia of Chemicals, Drugs and Biologicals (12th ed.). Merck & Co., Inc.

Chicago Style (17th ed.) Citation

Budavari, Susan, Maryadele J. O'Neil, and Ann Smith. The Merck Index: An Encyclopedia of Chemicals, Drugs and Biologicals. 12th ed. USA: Merck & Co., Inc, 1989.

MLA (9th ed.) Citation

Budavari, Susan, et al. The Merck Index: An Encyclopedia of Chemicals, Drugs and Biologicals. 12th ed. Merck & Co., Inc, 1989.