000 00392n a2200145ua 4500
040 _aP K Kelkar Library, IIT Kanpur
082 _a155.413
_bP571mE
100 _aPiaget, Jean
245 0 _aThe mechanisms of perception
_cJean Piaget
260 _aLondon
_bRoutledge And Kegan Paul
_c1969
300 _axxix, 384p
700 _aG. N. Seagrin: ,Tr.
700 _a
997 _aA4659 C
999 _c457534
_d457534