Delta Air Lines System Timetable 1947 December 16
MLA
Delta Air Lines, Inc.. "Delta Air Lines System Timetable 1947 December 16." Delta Flight Museum. 1947-12-16, https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19471216.
APA
Delta Air Lines, Inc. (1947-12-16). Delta Air Lines System Timetable 1947 December 16. Retrieved from https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19471216
Chicago
Delta Air Lines, Inc.. "Delta Air Lines System Timetable 1947 December 16." 1947-12-16. May 12, 2026. https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19471216.
