Staley, J. D. (1963). Improving individual productivity. American Management Association.
Dyfyniad Arddull ChicagoStaley, John D. Improving Individual Productivity. New York: American Management Association, 1963.
Dyfyniad MLAStaley, John D. Improving Individual Productivity. American Management Association, 1963.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.