00278nam a2200109 a 450000500170000000800410001704100080005810000160006624500360008226400420011830000080016020260717100942.0260717s2000    ii            000 0 eng d  aeng1 aBeri, G. C.10aMarketing Research /cBeri, g.c 1aNew Delhi :bTata McGraw Hill,c2000.  a474