APA Citation

(1989). 1989 Britannica book of the year. Chicago: Encyclopedia Britannica, inc.

Chicago Style Citation

1989 Britannica Book of the Year. Chicago: Encyclopedia Britannica, inc, 1989.

MLA Citation

1989 Britannica Book of the Year. Chicago: Encyclopedia Britannica, inc, 1989.

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