Cita APA (7a ed.)

Davies, S., & West, R. (1989). The Longman guide to English language examinations. Longman.

Cita Chicago Style (17a ed.)

Davies, Susan, y Richard West. The Longman Guide to English Language Examinations. Harlow: Longman, 1989.

Cita MLA (9a ed.)

Davies, Susan, y Richard West. The Longman Guide to English Language Examinations. Longman, 1989.