Dyfyniad APA

British Medical Association. (1995). British national formulary. British Medical Association.

Dyfyniad Arddull Chicago

British Medical Association. British National Formulary. London: British Medical Association, 1995.

Dyfyniad MLA

British Medical Association. British National Formulary. British Medical Association, 1995.

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