Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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