APA (7th ed.) Citation

Drucker, P. F. (1992). Managing for the future the 1990's and beyond. Truman Tralley Books.

Chicago Style (17th ed.) Citation

Drucker, Peter F. Managing for the Future the 1990's and Beyond. New York: Truman Tralley Books, 1992.

MLA (9th ed.) Citation

Drucker, Peter F. Managing for the Future the 1990's and Beyond. Truman Tralley Books, 1992.