APA Citation

(1990). 1990 Britannica book of the year. Chicago: Encyclopedia Britannica, inc.

Chicago Style Citation

1990 Britannica Book of the Year. Chicago: Encyclopedia Britannica, inc, 1990.

MLA Citation

1990 Britannica Book of the Year. Chicago: Encyclopedia Britannica, inc, 1990.

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