Dyfyniad APA

(1997). WHO Model Prescribing Information. Drugs Used in Skin Diseases. World Health Organisation.

Dyfyniad Arddull Chicago

WHO Model Prescribing Information. Drugs Used in Skin Diseases. Geneva: World Health Organisation, 1997.

Dyfyniad MLA

WHO Model Prescribing Information. Drugs Used in Skin Diseases. World Health Organisation, 1997.

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