000 00486 a2200193 4500
260 _bPrentice-Hall, Inc.
300 _axii-160 p.
245 _aEvaluation research : methods for assessing program effectiveness
650 _aEvaluation
650 _aRecherche
260 _aNew Jersey
260 _c1972
130 _lEn
440 _aPrentice -Hall Methods of Social Science Series
100 _aWEISS, H. Carol
020 _a0-13-292193-6
999 _c24771
_d24771