Travel swiftly north or south [effective January 6, 1935]
MLA
Delta Air Lines, Inc.. "Travel swiftly north or south [effective January 6, 1935]." Delta Flight Museum. 1935-01-06, https://dlg.galileo.usg.edu/do:delta_dal-eal-tt_dal-eal-tt-19350106.
APA
Delta Air Lines, Inc. (1935-01-06). Travel swiftly north or south [effective January 6, 1935]. Retrieved from https://dlg.galileo.usg.edu/do:delta_dal-eal-tt_dal-eal-tt-19350106
Chicago
Delta Air Lines, Inc.. "Travel swiftly north or south [effective January 6, 1935]." 1935-01-06. October 9, 2026. https://dlg.galileo.usg.edu/do:delta_dal-eal-tt_dal-eal-tt-19350106.
