000 00315nam a2200145 4500
082 _a300.72 LAL-D
100 _aLal Das, D K
245 _aDesigns of research
250 _a
260 _aJaipur
_bRawat Publication
_c2005
300 _a318 p
490 _a
650 _aSocial science research
942 _cBK
999 _c600484
_d600484