00314nam a22001217a 4500008004100000082001800041100001700059245002000076260005200096300001100148365000900159650002400168210210b           ||||| |||| 00| 0 eng d00a658.15bG9775  aGupta, R. S.10aPlant economics  aNew Delhi:bNational Productivity Councilc1972  a54p.    d7.50 0aEngineering economy