Cita APA (7a ed.)

Benn, P. (2011). Commitment. Acumen Publishing, Limited.

Cita Chicago Style (17a ed.)

Benn, Piers. Commitment. Durham: Acumen Publishing, Limited, 2011.

Cita MLA (8a ed.)

Benn, Piers. Commitment. Acumen Publishing, Limited, 2011.