Drucker, P. F. (1992). Managing for the future: The 1990s and beyond. Oxford: Butterworth-Heinemann.
Chicago Stili AlıntıDrucker, Peter F. Managing for the Future: The 1990s and Beyond. Oxford: Butterworth-Heinemann, 1992.
MLA AlıntıDrucker, Peter F. Managing for the Future: The 1990s and Beyond. Oxford: Butterworth-Heinemann, 1992.
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