APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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