Dyfyniad APA

Benton, W. C., & W.C. Benton; Jr. Purchasing and supply chain management. Boston: McGraw-Hill Irwin.

Dyfyniad Arddull Chicago

Benton, W. C., và W.C. Benton; Jr. Purchasing and Supply Chain Management. Boston: McGraw-Hill Irwin.

Dyfyniad MLA

Benton, W. C., và W.C. Benton; Jr. Purchasing and Supply Chain Management. Boston: McGraw-Hill Irwin.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.