Cita APA (7a ed.)

Boyce , T. (2006). Successful contract negotiation. Viva.

Cita Chicago Style (17a ed.)

Boyce , Tim. Successful Contract Negotiation. New Delhi: Viva, 2006.

Cita MLA (9a ed.)

Boyce , Tim. Successful Contract Negotiation. Viva, 2006.