Cita APA (7th ed.)

University of Michigan & Briggs, S. L. (2002). Examination for the certificate of proficiency in English: Official past papers. Oxford University Press.

Cita Chicago (17th ed.)

University of Michigan i Sarah L. Briggs. Examination for the Certificate of Proficiency in English: Official Past Papers. Oxford: Oxford University Press, 2002.

Cita MLA (8th ed.)

University of Michigan i Sarah L. Briggs. Examination for the Certificate of Proficiency in English: Official Past Papers. Oxford University Press, 2002.