The extra pharmacopoeia

MLA

Martindale, William, and R. G Todd. The Extra Pharmacopoeia. 25th ed. London: Pharmaceutical press, 1967.

APA

Martindale, W., & Todd, R. G. (1967). The extra pharmacopoeia. 25th ed. London: Pharmaceutical press.

Chicago

Martindale, William, and R. G Todd. The Extra Pharmacopoeia. 25th ed. London: Pharmaceutical press, 1967.