Render, B. (1997). Principles of operations management. Prentice-Hall of India.
Dyfyniad Arddull ChicagoRender, Barry. Principles of Operations Management. New Jersey: Prentice-Hall of India, 1997.
Dyfyniad MLARender, Barry. Principles of Operations Management. Prentice-Hall of India, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.