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