Delta Air Lines System Timetable 1980 October 26
MLA
Delta Air Lines, Inc.. "Delta Air Lines System Timetable 1980 October 26." Delta Flight Museum. 1980-10-26, https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19801026.
APA
Delta Air Lines, Inc. (1980-10-26). Delta Air Lines System Timetable 1980 October 26. Retrieved from https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19801026
Chicago
Delta Air Lines, Inc.. "Delta Air Lines System Timetable 1980 October 26." 1980-10-26. May 8, 2026. https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19801026.
