APA (7th ed.) Citation

(2009). 2009 book of the year. Encyclopaedia Britannica, Inc.

Chicago Style (17th ed.) Citation

2009 Book of the Year. Chicago: Encyclopaedia Britannica, Inc, 2009.

MLA (9th ed.) Citation

2009 Book of the Year. Encyclopaedia Britannica, Inc, 2009.

Warning: These citations may not always be 100% accurate.