Unknown creator; St. Louis University; Parks College of Saint Louis University. (1943). Students at Parks College provide line service.
Chicago-referens (17:e uppl.)Unknown creator; St. Louis University; Parks College of Saint Louis University. Students at Parks College Provide Line Service. 1943.
MLA-referens (8:e uppl.)Unknown creator; St. Louis University; Parks College of Saint Louis University. Students at Parks College Provide Line Service. 1943.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.