APA (7th ed.) Zitazioa
Day, A. J., & Hoffman, V. (2000). The annual register: A record of world events 1999. Keesing's Worldwide.
Chicago Style (17th ed.) Zitazioa
Day, Alan J., eta Verena Hoffman. The Annual Register: A Record of World Events 1999. London, [England]: Keesing's Worldwide, 2000.
MLA (9th ed.) Zitazioa
Day, Alan J., eta Verena Hoffman. The Annual Register: A Record of World Events 1999. Keesing's Worldwide, 2000.
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