Campbell, H. M. (1906). Famous American statesmen: Samuel Adams, John Adams, John Hancock, Patrick Henry, Alexander Hamilton, John Calhoun. Educational Pub. Co..
Chicago-referens (17:e uppl.)Campbell, Helen M. Famous American Statesmen: Samuel Adams, John Adams, John Hancock, Patrick Henry, Alexander Hamilton, John Calhoun. Boston: Educational Pub. Co., 1906.
MLA-referens (8:e uppl.)Campbell, Helen M. Famous American Statesmen: Samuel Adams, John Adams, John Hancock, Patrick Henry, Alexander Hamilton, John Calhoun. Educational Pub. Co., 1906.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.