Dyfyniad APA

Benton, W. (2007). Purchasing and supply management. McGraw-Hill.

Dyfyniad Arddull Chicago

Benton, W.C. Purchasing and Supply Management. New York: McGraw-Hill, 2007.

Dyfyniad MLA

Benton, W.C. Purchasing and Supply Management. McGraw-Hill, 2007.

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