Drucker, P. F. (1995). Managing in a time of great change. Truman Talley Books / Dutton.
Cita Chicago Style (17a ed.)Drucker, Peter Ferdinand. Managing in a Time of Great Change. New York: Truman Talley Books / Dutton, 1995.
Cita MLA (9a ed.)Drucker, Peter Ferdinand. Managing in a Time of Great Change. Truman Talley Books / Dutton, 1995.
Precaución: Estas citas no son 100% exactas.