000 00263nam a2200121Ia 4500
100 _aMarx, Melvin H.
942 _cBK
654 _a
245 _aLearning interactions
260 _aLondon
_bCollier Macmillan
_c1970
082 _a153.15
300 _bHb
_axiv, 427
999 _c361302
_d361302
041 _aeng