Cita APA (7a ed.)

Drucker, P. F. (1971). The age of discontinuity: Guidelines to our changing society. Pan Books.

Cita Chicago Style (17a ed.)

Drucker, Peter Ferdinand. The Age of Discontinuity: Guidelines to Our Changing Society. London: Pan Books, 1971.

Cita MLA (9a ed.)

Drucker, Peter Ferdinand. The Age of Discontinuity: Guidelines to Our Changing Society. Pan Books, 1971.