000 00252nam a22000977a 4500
082 _a150.1924
_bKOF
100 _aKoffka, K
245 _aPrinciples Of Gestalt Psychology /
_cK Koffka
260 _aLondon
_bRoutledge & Kegan Paul Ltd
_c1935
942 _cBK
999 _c498670
_d498670