APA引文

(2004). The wrld amanac and book of facts 2004.

Trích dẫn kiểu Chicago

The Wrld Amanac and Book of Facts 2004. 2004.

MLA引文

The Wrld Amanac and Book of Facts 2004. 2004.

警告：這些引文格式不一定是100％准確.