Cita APA (7th ed.)

Day, A. J., & Hoffman, V. (2000). The annual register: A record of world events 1999. Keesing's Worldwide.

Cita Chicago (17th ed.)

Day, Alan J., i Verena Hoffman. The Annual Register: A Record of World Events 1999. London, [England]: Keesing's Worldwide, 2000.

Cita MLA (9th ed.)

Day, Alan J., i Verena Hoffman. The Annual Register: A Record of World Events 1999. Keesing's Worldwide, 2000.