UNESCO. (1974). Social indicators: Problemsof definition and of selection. Unesco.
Chicago Style citaatUNESCO. Social Indicators: Problemsof Definition and of Selection. Paries: Unesco, 1974.
MLA citatieUNESCO. Social Indicators: Problemsof Definition and of Selection. Unesco, 1974.
Let op: Deze citaties zijn niet altijd 100% accuraat.