UNDERSTANDING AMERICAN GOVERNMENT EIGHTH EDITION
SUSAN WELCH JOHN GRUHL JOHN COMER SUSAN M.RIGDON著2222 年出版621 页ISBN：0534647499
FOUNDATIONS OF AMERICAN EDUCATION SIXTH EDITION
2010 年出版454 页ISBN：9780137157266
PERSPECTIVES ON AMERICAN CIVILIZATION THIRD EDITION
1990 年出版372 页ISBN：0536577137
THE AMERICAN CONGRESS SEVENTH EDITION
STEVEN S.SMITH JASON M.ROBERTS RYAN J.VANDER WIELEN2011 年出版462 页ISBN：1107654358
AMERICAN GOVERNMENT BRIEF VERSION FOURTH EDITION
1997 年出版465 页ISBN：9524669417906
