University, U. c. S. L. (1939). Cadet Classes 40-C and 40-D of the Parks College Army Air Corps Training Detachment.
Chicago-referens (17:e uppl.)University, Unknown creator; St. Louis. Cadet Classes 40-C and 40-D of the Parks College Army Air Corps Training Detachment. 1939.
MLA-referens (8:e uppl.)University, Unknown creator; St. Louis. Cadet Classes 40-C and 40-D of the Parks College Army Air Corps Training Detachment. 1939.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.