00435    a2200157   4500000002100000001000700021005001700028008004100045020001800086082001700104100001800121245007500139260003700214300001000251630001600261BKB                 13580120200902152917.0                                          a9788170336143  a300.72bD26P1 aDas, D.K. Lal1 aPractice of social research : social work prespectivecby D.K. Lal Das  aJaipurbRawat Publicationsc2010  a367p.  aSocial Work