00321nam a2200121Ia 4500008004100000041000800041082001000049100003200059245004100091260005100132300000800183365000800191231011s9999    xx            000 0 und d  aeng  a658.7  aP.Gopalkrishnan/M.Sudarshan  aPurchasing and  Materials Management  bTata Mcgrow Hill Pub. Co Ltd New Delhi -c2010  a441  b260