Schermerhorn, J. R. (1989). Management for productivity. New York, N.Y: Wiley.
Dyfyniad Arddull ChicagoSchermerhorn, John R. Management for Productivity. New York, N.Y: Wiley, 1989.
Dyfyniad MLASchermerhorn, John R. Management for Productivity. New York, N.Y: Wiley, 1989.
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