DOBLER DONALD W. (1984). PURCHASING AND MATERIALS MANAGEMENT: TEXT AND CASES (4.). TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED.
Chicago-viite (17. p.)DOBLER DONALD W. PURCHASING AND MATERIALS MANAGEMENT: TEXT AND CASES. 4. NEW DELHI: TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 1984.
MLA-viite (9. p.)DOBLER DONALD W. PURCHASING AND MATERIALS MANAGEMENT: TEXT AND CASES. 4. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 1984.
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