Citazione APA

Drucker, P. F. (1992). Managing for the future: The 1990`s and beyond.

Stile di citazione Chicago

Drucker, Peter F. Managing for the Future: The 1990`s and Beyond. New Delhi, Tata Mc Graw Hill, 1992.

Citazione MLA

Drucker, Peter F. Managing for the Future: The 1990`s and Beyond. 1992.