APA引文

(1971). Webster's guide to American history. Massachusetts: G and C Merriam.

Trích dẫn kiểu Chicago

Webster's Guide to American History. Massachusetts: G and C Merriam, 1971.

MLA引文

Webster's Guide to American History. Massachusetts: G and C Merriam, 1971.

警告：這些引文格式不一定是100％准確.