Jacovides T. Terry & Nebel A. Anne. (2008). Laser B1+: Workbook with Key. Updated for the revised FCE. Athens, Macmillan, 2008.
Cita Chicago (17th ed.)Jacovides T. Terry i Nebel A. Anne. Laser B1+: Workbook with Key. Updated for the Revised FCE. Athens, Macmillan, 2008, 2008.
Cita MLA (9th ed.)Jacovides T. Terry i Nebel A. Anne. Laser B1+: Workbook with Key. Updated for the Revised FCE. Athens, Macmillan, 2008, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.