000 00313nam a2200133Ia 4500
008 160316s1979 xxu||||| |||| 00| 0 eng d
020 _a
100 _aPiaget , J
245 _aBehaviour And Evolution
250 _a1ST
260 _aGREAT BRITAIN
_bROUTLEDGE AND KEGAN PAUL
_c1979
300 _a158
700 _a
_a
999 _c10224
_d10224