Cita APA (7th ed.)

Lafond, C., Vine, S., & Welch, B. (2010). English for Negotiating. Oxford University Press.

Cita Chicago (17th ed.)

Lafond, Charles, Sheila Vine, i Birgit Welch. English for Negotiating. Oxford: Oxford University Press, 2010.

Cita MLA (9th ed.)

Lafond, Charles, et al. English for Negotiating. Oxford University Press, 2010.