Oncken, W. (1984). Managing management time: Who's got the money? New York: Prentice-Hall.
Dyfyniad Arddull ChicagoOncken, William. Managing Management Time: Who's Got the Money? New York: Prentice-Hall, 1984.
Dyfyniad MLAOncken, William. Managing Management Time: Who's Got the Money? New York: Prentice-Hall, 1984.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.