Cita APA (7a ed.)

Drucker, P. F. (1997). Adventures of a bystander. John Wiley & Sons.

Cita Chicago Style (17a ed.)

Drucker, Peter Ferdinand. Adventures of a Bystander. New York [etc.]: John Wiley & Sons, 1997.

Cita MLA (9a ed.)

Drucker, Peter Ferdinand. Adventures of a Bystander. John Wiley & Sons, 1997.