Dyfyniad APA

Barker, T. (1989). Essentials of materials management. McGraw-Hill.

Dyfyniad Arddull Chicago

Barker, Ted. Essentials of Materials Management. London ; New York: McGraw-Hill, 1989.

Dyfyniad MLA

Barker, Ted. Essentials of Materials Management. McGraw-Hill, 1989.

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