00718nam a2200181 a 4500 20190520020517.0 080123s19uu xx 00 eng d Piaget, Jean, 1896- Main trends in inter- disciplinary research / Jean Piaget. London : Allen & Unwin, c1973. 73 p. : ill. Main Trends in the social sciences ; 5 Origibally published as Chapter 7 in " Main trends in social and human sciences, part 1, Mouton, Unesco, 1970" Includes notes and index. Social science research Research OLOPSC 32332 32332 0 0 0 0 CLLRC CLLRC CIR 2019-05-20 0 H 62 P5 1973 CL1884 2023-07-10 00:00:00 2019-05-20 BK