00418nam a2200133Ia 4500008004100000020001800041040003800059100002100097245005100118250000800169260004500177300002700222653003500249211230s9999    xx            000 0 und d  a0-472-10034-3  cJayakar Knowledge Resource Centre  aCoombs, Clyde H. 0aPsychology and mathematics: an essay on theory  a1st  bUniv. of Michigan PressaAnn Arborc1986  aviii,112p.  p. ; 21cms  aPsychology-Mathematical models