00549nam a2200157Ia 4500001001100000005001700011008004100028020001500069050001600084245008900100260005400189300002300243504004200266650004900308650003400357000002325920251012174810.0  760114s1975    caua     b    001 0 eng  a080390428200aH62b.H245400aHandbook of evaluation researchcedited by Elmer L. Struening and Marcia Guttentag.   aBeverly Hills, Calif.bSage Publicationscc1975.   a2 v.bill.c25 cm.  aIncludes bibliographies and indexes.  0aEvaluation research (Social action programs) 0aSocial sciencesxMethodology.