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Dyfyniad Arddull ChicagoFitzgerald, Joan. Moving Up in the New Economy: Career Ladders for U.S. Workers. Ithaca, N.Y.: Cornell University Press, 2006.
Dyfyniad MLAFitzgerald, Joan. Moving Up in the New Economy: Career Ladders for U.S. Workers. Cornell University Press, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.