Ireson, W. G. (1955). Handbook of Industrial engineering and management. Prentice hall.
Dyfyniad Arddull ChicagoIreson, William Grant. Handbook of Industrial Engineering and Management. U,S.A: Prentice hall, 1955.
Dyfyniad MLAIreson, William Grant. Handbook of Industrial Engineering and Management. Prentice hall, 1955.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.