000 00276nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aSingh, Y.K.
245 0 _aResearch Methodology Techniques And Trends
260 _aNew Delhi
_bA.P.H.
_c2011
300 _a352p.
942 _cBK
999 _c13655
_d13655