APA引文

(2004). The world almanac and book of facts 2004. U.S.A: World Almanac Books.

Trích dẫn kiểu Chicago

The World Almanac and Book of Facts 2004. U.S.A: World Almanac Books, 2004.

MLA引文

The World Almanac and Book of Facts 2004. U.S.A: World Almanac Books, 2004.

警告：這些引文格式不一定是100％准確.