Gaya APA

William, M., Reynolds, J, E, F. (1993). Martindale: the extra pharmacopoeia (2) (13). London: The Pharmaceuical Press.

Gaya MLA

William, Martidale., Reynolds, James, E., F.. "Martindale: the extra pharmacopoeia (2)". 13 London: The Pharmaceuical Press, 1993. Text.