Weltgesundheitsorganisation. (1970). Spontaneous and induced abortion: Report of a WHO scientific group. Technical report series / World Health Organization.
Chicago-Zitierstil (17. Ausg.)Weltgesundheitsorganisation. "Spontaneous and Induced Abortion: Report of a WHO Scientific Group." Technical Report Series / World Health Organization 1970.
MLA-Zitierstil (8. Ausg.)Weltgesundheitsorganisation. "Spontaneous and Induced Abortion: Report of a WHO Scientific Group." Technical Report Series / World Health Organization, 1970.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.