Gaya APA

O'Neil, Maryadele J.. (2001). The Merck index: an encyclopedia of chemicals, drugs, and biologicals (13th ed.). USA: Merck.

Gaya Chicago

O'Neil, Maryadele J.. The Merck index: an encyclopedia of chemicals, drugs, and biologicals. 13th ed. USA: Merck, 2001. Text.

Gaya MLA

O'Neil, Maryadele J.. The Merck index: an encyclopedia of chemicals, drugs, and biologicals. 13th ed. USA: Merck, 2001. Text.

Gaya Turabian

O'Neil, Maryadele J.. The Merck index: an encyclopedia of chemicals, drugs, and biologicals. 13th ed. USA: Merck, 2001. Print.