Cita APA (7a ed.)

Norris, R., & Edwards, L. (2013). Ready for First: Workbook (3rd ed.). Macmillan.

Cita Chicago Style (17a ed.)

Norris, Roy, y Lynda Edwards. Ready for First: Workbook. 3rd ed. London: Macmillan, 2013.

Cita MLA (9a ed.)

Norris, Roy, y Lynda Edwards. Ready for First: Workbook. 3rd ed. Macmillan, 2013.