Campbell, K. E. (2007). Senator Sam Ervin, last of the founding fathers. University of North Carolina Press.
Chicago-referens (17:e uppl.)Campbell, Karl E. Senator Sam Ervin, Last of the Founding Fathers. Chapel Hill: University of North Carolina Press, 2007.
MLA-referens (9:e uppl.)Campbell, Karl E. Senator Sam Ervin, Last of the Founding Fathers. University of North Carolina Press, 2007.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.