Dyfyniad APA

Heizer, J. H., & Render, B. (2009). Operations management (9th ed., flexible version.). Pearson/Prentice Hall.

Dyfyniad Arddull Chicago

Heizer, Jay H., and Barry Render. Operations Management. 9th ed., flexible version. Upper Saddle River, N.J: Pearson/Prentice Hall, 2009.

Dyfyniad MLA

Heizer, Jay H., and Barry Render. Operations Management. 9th ed., flexible version. Pearson/Prentice Hall, 2009.

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