Cita APA (7a ed.)

Burgess, S., & Acklam, R. (1996). First certificate gold (Fifth impression.). Longman.

Cita Chicago Style (17a ed.)

Burgess, Sally, y Richard Acklam. First Certificate Gold. Fifth impression. Harlow: Longman, 1996.

Cita MLA (9a ed.)

Burgess, Sally, y Richard Acklam. First Certificate Gold. Fifth impression. Longman, 1996.