SINGH M K. (1989). LABOUR PRODUCTIVITY IN INDIAN INDUSTRY (A CASE STUDY ). MITTAL PUBLICATIONS.
Chicago-čujuhus (17. p.)SINGH M K. LABOUR PRODUCTIVITY IN INDIAN INDUSTRY (A CASE STUDY ). NEW DELHI: MITTAL PUBLICATIONS, 1989.
MLA-čujuhus (9. p.)SINGH M K. LABOUR PRODUCTIVITY IN INDIAN INDUSTRY (A CASE STUDY ). MITTAL PUBLICATIONS, 1989.
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