KHANNA, O. P. (1993). INDUSTRIAL ENGINEERING & MANAGEMENT. CHAROTAR.
Chicago-čujuhus (17. p.)KHANNA, O P. INDUSTRIAL ENGINEERING & MANAGEMENT. NEW DELHI: CHAROTAR, 1993.
MLA-čujuhus (9. p.)KHANNA, O P. INDUSTRIAL ENGINEERING & MANAGEMENT. CHAROTAR, 1993.
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