Delta Air Lines System Timetable 1947 January 23
MLA
Delta Air Lines, Inc.. "Delta Air Lines System Timetable 1947 January 23." Delta Flight Museum. 1947-01-23, https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19470123.
APA
Delta Air Lines, Inc. (1947-01-23). Delta Air Lines System Timetable 1947 January 23. Retrieved from https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19470123
Chicago
Delta Air Lines, Inc.. "Delta Air Lines System Timetable 1947 January 23." 1947-01-23. August 17, 2025. https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19470123.
