Cita APA (7a ed.)

Cunningham, S., & Moor, P. (1999). Cutting edge: Upper intermediate. Student's book (1st published.). Longman.

Cita Chicago Style (17a ed.)

Cunningham, Sarah, y Peter Moor. Cutting Edge: Upper Intermediate. Student's Book. 1st published. Harlow: Longman, 1999.

Cita MLA (9a ed.)

Cunningham, Sarah, y Peter Moor. Cutting Edge: Upper Intermediate. Student's Book. 1st published. Longman, 1999.