00287nam a2200121Ia 4500008004100000041000800041082001500049100001500064245003300079260003000112300000800142650001500150231219s9999    xx            000 0 und d  aeng  a658.83/SIN  aSingh S.P.  aMarketing Research (SinghSP)  bWisdom Publications Delhi  a340  aManagement