00354nam a2200121 a 450000500170000002000150001708200200003210000260005224500760007826000340015430000160018849000280020420251203092011.0  a0803931298  a361.61,bD, pat  aPatton, Michael Quinn  aHow to use qualitative methods in evaluation, Michael Quinn Patton, eng  aLoNew Delhion, Sage, gBc1987  a176p.c22cm  aSocial action programms