U.S.A, n. E.. (1976). Issues and Themes: Essays in American history an civilization. U.S.I.S.
Chicago-referens (17:e uppl.)U.S.A, national Endowment. Issues and Themes: Essays in American History an Civilization. Delhi: U.S.I.S, 1976.
MLA-referens (9:e uppl.)U.S.A, national Endowment. Issues and Themes: Essays in American History an Civilization. U.S.I.S, 1976.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.