World Health Organization. (1954). World Health Organization publications .: Catalogue. Geneva: WHO.
Chicago ZitierstilWorld Health Organization. World Health Organization Publications .: Catalogue. Geneva: WHO, 1954.
MLA ZitierstilWorld Health Organization. World Health Organization Publications .: Catalogue. Geneva: WHO, 1954.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.