Chicago and Southern Air Lines Annual Report 1940
MLA
Chicago and Southern Air Lines. "Chicago and Southern Air Lines Annual Report 1940." Delta Flight Museum. 1940-08-27, https://dlg.galileo.usg.edu/do:delta_csa-ar_csa-ar-1940.
APA
Chicago and Southern Air Lines (1940-08-27). Chicago and Southern Air Lines Annual Report 1940. Retrieved from https://dlg.galileo.usg.edu/do:delta_csa-ar_csa-ar-1940
Chicago
Chicago and Southern Air Lines. "Chicago and Southern Air Lines Annual Report 1940." 1940-08-27. January 18, 2026. https://dlg.galileo.usg.edu/do:delta_csa-ar_csa-ar-1940.
