APA引文

(2002). The world almanac and book of facts 2002. U.S.A: World Almanac Books.

Trích dẫn kiểu Chicago

The World Almanac and Book of Facts 2002. U.S.A: World Almanac Books, 2002.

MLA引文

The World Almanac and Book of Facts 2002. U.S.A: World Almanac Books, 2002.

警告：這些引文格式不一定是100％准確.