Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

Drucker, Peter. Managing for the Future: The 1990s and Beyond. New delhi: TMH, 1992.

Cita MLA (9th ed.)

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