Seidman, L. W. (1990). Productivity the American advantage: How 50 U.S. companies are regaining the competitive edge. New York: Simon and Schuster.
Dyfyniad Arddull ChicagoSeidman, L. William. Productivity the American Advantage: How 50 U.S. Companies Are Regaining the Competitive Edge. New York: Simon and Schuster, 1990.
Dyfyniad MLASeidman, L. William. Productivity the American Advantage: How 50 U.S. Companies Are Regaining the Competitive Edge. New York: Simon and Schuster, 1990.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.