Brook-Hart G. Guy. (2008). Complete First Certificate: Student's Book with answers. Cambridge, Cambridge University Press, 2008.
Cita Chicago (17th ed.)Brook-Hart G. Guy. Complete First Certificate: Student's Book with Answers. Cambridge, Cambridge University Press, 2008, 2008.
Cita MLA (9th ed.)Brook-Hart G. Guy. Complete First Certificate: Student's Book with Answers. Cambridge, Cambridge University Press, 2008, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.