Drucker, P. F. (1992). Managing for the future. Elsevier, Tuman Talley Books/Dutton.
Cita Chicago Style (17a ed.)Drucker, Peter F. Managing for the Future. New Delhi : New York: Elsevier, Tuman Talley Books/Dutton, 1992.
Cita MLA (8a ed.)Drucker, Peter F. Managing for the Future. Elsevier, Tuman Talley Books/Dutton, 1992.
Precaución: Estas citas no son 100% exactas.