000			00523pam a2200145a 44500
040			_aP K Kelkar Library, IIT Kanpur
082			_a153.23 _bP634a
100			_aPikas, Anatol
245	0		_aAbstraction and concept formation _ban interpretative investigation into a group of psychological frames of reference _cAnatol Pikas
260			_aSweden _bUniversity Of Uppsala _c1965
300			_a303p
440			_aStudia Scientiae Paedagogicae Upsaliensia _vV.7
650			_aResearch on abstraction
997			_aK13126 C
999			_c391013 _d391013