00714nam0-22002771i-450-990003076190403321000307619FED01000307619(Aleph)000307619FED0100030761920000920d1963----km-y0itay50------baitaITExplanation in Social Scienceby Robert Brown.ChicagoAldine1963.VIII, 198 p.21 cm11130Brown,RobertITUNINARICAUNIMARCBK99000307619040332111130 BRO031785SESSESExplanation in Social Science460162UNINAING01