Cita APA (7th ed.)

Norris R. Roy. (2005). Ready for First Certificate: Workbook with Answer Key. Oxford, Macmillan, 2005.

Cita Chicago (17th ed.)

Norris R. Roy. Ready for First Certificate: Workbook with Answer Key. Oxford, Macmillan, 2005, 2005.

Cita MLA (9th ed.)

Norris R. Roy. Ready for First Certificate: Workbook with Answer Key. Oxford, Macmillan, 2005, 2005.

Atenció: Aquestes cites poden no estar 100% correctes.