cam a22 4500 216007534 CHVBK 20191216105355.0 941006s1977 xxk|||||||||| 00 |eng d 0-85527-930-3 (pbk.) (RERO)1917515 RERO gepiag s1ps rero s2pe rero MacNally Douglas William (RERO)A003547340 cre Piaget, education and teaching D.W. McNally 2nd. ed Hassocks Sussex Harvester Press 1977 171 p. ill. 24 cm txt rdacontent n rdamedia nc rdacarrier RERO 100 1- MacNally Douglas William (RERO)A003547340 cre SWISSBIB 058640290 BK020000 XK020000 XK020000 RERO RE61092 RE61092 RE610920001 LS 2 MCN 1977 AJPA 734