Dyfyniad APA

(1989). Production and operations management. New York: McGraw-Hill.

Dyfyniad Arddull Chicago

Production and Operations Management. New York: McGraw-Hill, 1989.

Dyfyniad MLA

Production and Operations Management. New York: McGraw-Hill, 1989.

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