Não informado. (1960). International Bibliography of the Social Sciences. Unesco, International Committee for Social Sciences Documentation.
Chicago-Zitierstil (17. Ausg.)Não informado. International Bibliography of the Social Sciences. Paris: Unesco, International Committee for Social Sciences Documentation, 1960.
MLA-Zitierstil (8. Ausg.)Não informado. International Bibliography of the Social Sciences. Unesco, International Committee for Social Sciences Documentation, 1960.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.