APA (7e ed.) Bronvermelding

Drucker, P. F. (1969). The age of discontinuity: Guidelines to our changing society. National Book Store.

Chicago (17e ed.) Bronvermelding

Drucker, Peter Ferdinand. The Age of Discontinuity: Guidelines to Our Changing Society. [Manila: National Book Store, 1969.

MLA (9e ed.) Bronvermelding

Drucker, Peter Ferdinand. The Age of Discontinuity: Guidelines to Our Changing Society. National Book Store, 1969.