Lua APA (7ú heag.)

DOBLER DONALD W. (1984). PURCHASING AND MATERIALS MANAGEMENT: TEXT AND CASES (4.). TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED.

Lua i Stíl Chicago (17ú heag.)

DOBLER DONALD W. PURCHASING AND MATERIALS MANAGEMENT: TEXT AND CASES. 4. NEW DELHI: TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 1984.

Lua MLA (9ú heag.)

DOBLER DONALD W. PURCHASING AND MATERIALS MANAGEMENT: TEXT AND CASES. 4. TATA MCGRAW-HILL PUBLISHING COMPANY LIMITED, 1984.

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