Cita APA (7a ed.)

(2001). BRITANNICA book of the year: 2001. Encyclopaedia Britannica.

Cita Chicago Style (17a ed.)

BRITANNICA Book of the Year: 2001. Chicago: Encyclopaedia Britannica, 2001.

Cita MLA (8a ed.)

BRITANNICA Book of the Year: 2001. Encyclopaedia Britannica, 2001.