Hess, P. (1996). Management responsibility for performance. McGraw-Hill.
Dyfyniad Arddull ChicagoHess, Peter. Management Responsibility for Performance. New York: McGraw-Hill, 1996.
Dyfyniad MLAHess, Peter. Management Responsibility for Performance. McGraw-Hill, 1996.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.