APA (7th ed.) Citation

Trumbull, C. P. (1999). Britannica book of the year 2000. Encyclopaedia Britannica, Inc.

Chicago Style (17th ed.) Citation

Trumbull, Charles P. Britannica Book of the Year 2000. Encyclopaedia Britannica, Inc, 1999.

MLA (8th ed.) Citation

Trumbull, Charles P. Britannica Book of the Year 2000. Encyclopaedia Britannica, Inc, 1999.

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