Cita APA (7a ed.)

Day, A. J., & Hoffman, V. (1989). The annual register: A record of world events, 1988. Longman.

Cita Chicago Style (17a ed.)

Day, Alan J., y Verena Hoffman. The Annual Register: A Record of World Events, 1988. Essex, England: Longman, 1989.

Cita MLA (9a ed.)

Day, Alan J., y Verena Hoffman. The Annual Register: A Record of World Events, 1988. Longman, 1989.