Cita APA (7a ed.)

(1976). The Merck index: An encyclopedia of chemicals drugs (9th edition.). Merck.

Cita Chicago Style (17a ed.)

The Merck Index: An Encyclopedia of Chemicals Drugs. 9th edition. New Jersey: Merck, 1976.

Cita MLA (8a ed.)

The Merck Index: An Encyclopedia of Chemicals Drugs. 9th edition. Merck, 1976.