Cita APA (7a ed.)

Martindale, W., & Todd, R. G. (1967). Extra pharmacopoeia: Incorporating Squire's Companion (25th ed.). Pharmaceutical P..

Cita Chicago Style (17a ed.)

Martindale, William, y Robert Gibson Todd. Extra Pharmacopoeia: Incorporating Squire's Companion. 25th ed. London: Pharmaceutical P., 1967.

Cita MLA (9a ed.)

Martindale, William, y Robert Gibson Todd. Extra Pharmacopoeia: Incorporating Squire's Companion. 25th ed. Pharmaceutical P., 1967.