00422cam a2200157ua 450000100060000000800390000602000180004504000090006308200080007210000270008024500510010725000160015826000650017430000100023965300150024910660190325n        ii  |||gr||||Z||||||eng  a9788122430776  cMAIN  a338  aR R Barthwal,eAuthor.  aIndustrial economicsban introductory textbook  a3rd rev ed.  aNew Delhi:bNew age international limited publishers,c2016.  a419p.  aProduction