HUMBLE JOHN. (1971). MANAGEMENT BY OBJECTIVES. MCGRAW-HILL.
Dyfyniad Arddull ChicagoHUMBLE JOHN. MANAGEMENT BY OBJECTIVES. NEW YORK: MCGRAW-HILL, 1971.
Dyfyniad MLAHUMBLE JOHN. MANAGEMENT BY OBJECTIVES. MCGRAW-HILL, 1971.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.