APA Zitierstil

World Health Organization. (1990). Use of essential drugs. World Health Organization.

Chicago Zitierstil

World Health Organization. Use of Essential Drugs. Geneva: World Health Organization, 1990.

MLA Zitierstil

World Health Organization. Use of Essential Drugs. World Health Organization, 1990.

Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.