Delta Air Lines System Timetable 1941 January 6
MLA
Delta Air Corporation. "Delta Air Lines System Timetable 1941 January 6." Delta Flight Museum. 1941-01-06, https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19410106.
APA
Delta Air Corporation (1941-01-06). Delta Air Lines System Timetable 1941 January 6. Retrieved from https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19410106
Chicago
Delta Air Corporation. "Delta Air Lines System Timetable 1941 January 6." 1941-01-06. July 30, 2025. https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19410106.
