Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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