Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

Drucker, Peter Ferdinand. Managing in a Time of Great Change. Oxford: Butterworth-Heinemann, 1995.

Lua MLA (9ú heag.)

Drucker, Peter Ferdinand. Managing in a Time of Great Change. Butterworth-Heinemann, 1995.

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