Cita APA (7th ed.)

Drucker, P. F. (1992). Managing for the future. Butterworth-Heinemann.

Cita Chicago (17th ed.)

Drucker, Peter F. Managing for the Future. Oxford: Butterworth-Heinemann, 1992.

Cita MLA (9th ed.)

Drucker, Peter F. Managing for the Future. Butterworth-Heinemann, 1992.