TY - BOOK T1 - An evaluation of level of aspiration as a training procedure T2 - The Ford Foundation Doctoral Dissertation series A1 - Fryer, Forrest W. LA - English PP - Englewood Cliffs, N.J. PB - Prentice-Hall YR - 1964 UL - http://www.ds.mainlib.upd.edu.ph/Record/UP-99796217602429800 OP - 92 CN - BF 683 F7 KW - Level of aspiration. ER -