00467nam a2200169Ia 4500008004100000020001800041041000800059082001900067100003200086245003100118250000600149260006400155300000800219365001200227650002600239650003200265140306s9999    xx            000 0 und d  a81 204 0602 8  aeng  a658 .4bINT/IN  aInternational labour office  aIntroduction to work study  a3  aNew DelhibOxford and IBH Publishing Company Pvt Ltdc 1991  a411  bRs .175  aProductivity concepts  atechniques for productivity