(2007). World politics 06/07. United States of America: McGraw-Hill Contemporary Learning Series.
Trích dẫn kiểu ChicagoWorld Politics 06/07. United States of America: McGraw-Hill Contemporary Learning Series, 2007.
MLA引文World Politics 06/07. United States of America: McGraw-Hill Contemporary Learning Series, 2007.
警告:这些引文格式不一定是100%准确.