(2009). U.S.: A narrative history. Boston: McGraw-Hill.
Trích dẫn kiểu ChicagoU.S.: A Narrative History. Boston: McGraw-Hill, 2009.
MLA引文U.S.: A Narrative History. Boston: McGraw-Hill, 2009.
警告：這些引文格式不一定是100％准確.
APA引文
(2009). U.S.: A narrative history. Boston: McGraw-Hill.
Trích dẫn kiểu ChicagoU.S.: A Narrative History. Boston: McGraw-Hill, 2009.
MLA引文U.S.: A Narrative History. Boston: McGraw-Hill, 2009.