World Health Organization. (2003). selection and use of essential medicines: Report of the WHO expert committee, 2002 including the 12th model list of essential medicines. World Health Organisation.
Dyfyniad Arddull ChicagoWorld Health Organization. Selection and Use of Essential Medicines: Report of the WHO Expert Committee, 2002 Including the 12th Model List of Essential Medicines. Geneva: World Health Organisation, 2003.
Dyfyniad MLAWorld Health Organization. Selection and Use of Essential Medicines: Report of the WHO Expert Committee, 2002 Including the 12th Model List of Essential Medicines. World Health Organisation, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.