Drucker, P. F. (1992). Managing for the future: The 1990s and beyond. Plume.
Citazione stile Chigago Style (17a edizione)Drucker, Peter Ferdinand. Managing for the Future: The 1990s and Beyond. New York: Plume, 1992.
Citatione MLA (9a ed.)Drucker, Peter Ferdinand. Managing for the Future: The 1990s and Beyond. Plume, 1992.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.