Não informado. (1947). Chronicle of the World Health Organization. World Health Organization.
Chicago-Zitierstil (17. Ausg.)Não informado. Chronicle of the World Health Organization. Geneve, Suíça: World Health Organization, 1947.
MLA-Zitierstil (8. Ausg.)Não informado. Chronicle of the World Health Organization. World Health Organization, 1947.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.