Cita APA (7a ed.)

Carr, J. C., & Eales, F. (2001). Cutting edge: Upper intermediate. Longman.

Cita Chicago Style (17a ed.)

Carr, Jane Comyns, y Frances Eales. Cutting Edge: Upper Intermediate. Essex, England: Longman, 2001.

Cita MLA (8a ed.)

Carr, Jane Comyns, y Frances Eales. Cutting Edge: Upper Intermediate. Longman, 2001.