APA (7th ed.) Citation

Blackburn, B. J., & Holford-Strevens, L. (1999). The Oxford companion to the year. Oxford University Press.

Chicago Style (17th ed.) Citation

Blackburn, Bonnie J., and Leofranc Holford-Strevens. The Oxford Companion to the Year. New York ; Oxford: Oxford University Press, 1999.

MLA (9th ed.) Citation

Blackburn, Bonnie J., and Leofranc Holford-Strevens. The Oxford Companion to the Year. Oxford University Press, 1999.