APA (7th ed.) Citation

Merck & Co. (2001). The Merck index: An encyclopedia of chemicals, drugs, and biologicals (13. ed.).

Chicago Style (17th ed.) Citation

Merck & Co. The Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals. 13. ed. Whitehouse Station, N.J, 2001.

MLA (9th ed.) Citation

Merck & Co. The Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals. 13. ed. 2001.