Dyfyniad APA

Martindale, W., & Reynolds, J. E. F. (1996). The extra pharmacopoeia (31st ed.). Royal Pharmaceutical Society.

Dyfyniad Arddull Chicago

Martindale, William, and James E. F. Reynolds. The Extra Pharmacopoeia. 31st ed. London: Royal Pharmaceutical Society, 1996.

Dyfyniad MLA

Martindale, William, and James E. F. Reynolds. The Extra Pharmacopoeia. 31st ed. Royal Pharmaceutical Society, 1996.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.