Cita APA (7a ed.)

(1998). The Merck index: On cd-rom : version 12:2 (12th ed.). Chapman & Hall.

Cita Chicago Style (17a ed.)

The Merck Index: On Cd-rom : Version 12:2. 12th ed. London [etc.]: Chapman & Hall, 1998.

Cita MLA (9a ed.)

The Merck Index: On Cd-rom : Version 12:2. 12th ed. Chapman & Hall, 1998.