Western Air Express Annual Report 1939
MLA
Western Air Express Corporation. "Western Air Express Annual Report 1939." Delta Flight Museum. 1940-03-01, https://dlg.galileo.usg.edu/do:delta_wal-ar_wae-ar-1939.
APA
Western Air Express Corporation (1940-03-01). Western Air Express Annual Report 1939. Retrieved from https://dlg.galileo.usg.edu/do:delta_wal-ar_wae-ar-1939
Chicago
Western Air Express Corporation. "Western Air Express Annual Report 1939." 1940-03-01. April 29, 2026. https://dlg.galileo.usg.edu/do:delta_wal-ar_wae-ar-1939.
