Williams, W. A. The war for the American frontier: World war II / William Appleman Williams. Twentieth-century america : recent interpretations.(1972).
Chicago-referens (17:e uppl.)Williams, William Appleman. "The War for the American Frontier: World War II / William Appleman Williams." Twentieth-century America : Recent Interpretations.(1972) .
MLA-referens (8:e uppl.)Williams, William Appleman. "The War for the American Frontier: World War II / William Appleman Williams." Twentieth-century America : Recent Interpretations.(1972), .
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.