(1948). A guide for the teaching of the history of the United States: A two-year course. [State Department of Education].
Chicago-referens (17:e uppl.)A Guide for the Teaching of the History of the United States: A Two-year Course. Trenton, N.J: [State Department of Education], 1948.
MLA-referens (9:e uppl.)A Guide for the Teaching of the History of the United States: A Two-year Course. [State Department of Education], 1948.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.