Moor P. Peter & Cunningham S. Sarah. (2010). Cutting EDGE. Advanced: Workbook with key (9-ed.). Harlow, Longman, 2010.
Cita Chicago (17th ed.)Moor P. Peter i Cunningham S. Sarah. Cutting EDGE. Advanced: Workbook with Key. 9-ed. Harlow, Longman, 2010, 2010.
Cita MLA (9th ed.)Moor P. Peter i Cunningham S. Sarah. Cutting EDGE. Advanced: Workbook with Key. 9-ed. Harlow, Longman, 2010, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.