Oncken, W. (1984). Managing management time: Who's got the monkey? Prentice-hall.
Tohutoru Kātū Chicago (17th ed.)Oncken, William. Managing Management Time: Who's Got the Monkey? New Jersey: Prentice-hall, 1984.
Tohutoro MLA (9th ed.)Oncken, William. Managing Management Time: Who's Got the Monkey? Prentice-hall, 1984.
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