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Dyfyniad Arddull ChicagoWebb, James E. Space Age Management; the Large-scale Approach. New York: McGraw-Hill, 1969.
Dyfyniad MLAWebb, James E. Space Age Management; the Large-scale Approach. New York: McGraw-Hill, 1969.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.