00597nam a2200133Ia 4500008004100000040001700041082002100058100002000079245015700099260004600256300001500302500011800317650002800435190328s9999||||xx |||||||||||||| ||und||  aNITILcNITIL  221sta361bF873A  aFrench, David G 3aAn Approach to measuring results in social workba report on the Michigan reconnaissance study of the evaluative research in social workcDavid G French  aNew YorkbColumbia University Pressc1952  axiv, 178p.  aWith analysis of fair evaluative studies prepared by John G Hill, Leon Fesinger, Helen L Witmer and Alfred J Kahn  aSocial service-Research