Dyfyniad APA

Drucker, P. F. (1995). Managing in a time of great change. Butterworth.

Dyfyniad Arddull Chicago

Drucker, Peter F. Managing in a Time of Great Change. London: Butterworth, 1995.

Dyfyniad MLA

Drucker, Peter F. Managing in a Time of Great Change. Butterworth, 1995.

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