Gaya APA

O'Neil, M, J. (2001). The Merck Index: An Encyclopedia Of Chemicals, Drugs, and Biologicals, Book 1 (13th. ed.). New Jersey: Merck Research Laboratories.

Gaya MLA

O'Neil, Maryadele, J.. "The Merck Index: An Encyclopedia Of Chemicals, Drugs, and Biologicals, Book 1". 13th. ed. New Jersey: Merck Research Laboratories, 2001. Text.