(1997). use of essential drugs: Seventh report of the WHO expert committee (including the revised model list of essential drugs). World Health Organisation.
استشهاد بنمط شيكاغوUse of Essential Drugs: Seventh Report of the WHO Expert Committee (including the Revised Model List of Essential Drugs). Geneva: World Health Organisation, 1997.
MLA استشهادUse of Essential Drugs: Seventh Report of the WHO Expert Committee (including the Revised Model List of Essential Drugs). World Health Organisation, 1997.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.