APA (7th ed.) Citation

Drucker, P. F. (1969). The age of discontinuity: Guidelines to our changing society. Harper and Row.

Chicago Style (17th ed.) Citation

Drucker, Peter Ferdinand. The Age of Discontinuity: Guidelines to Our Changing Society. Nueva York: Harper and Row, 1969.

MLA (9th ed.) Citation

Drucker, Peter Ferdinand. The Age of Discontinuity: Guidelines to Our Changing Society. Harper and Row, 1969.