Delta Air Lines System Timetable July 1, 1985
MLA
Delta Air Lines, Inc.. "Delta Air Lines System Timetable July 1, 1985." Delta Flight Museum. 1985-07-01, https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19850701.
APA
Delta Air Lines, Inc. (1985-07-01). Delta Air Lines System Timetable July 1, 1985. Retrieved from https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19850701
Chicago
Delta Air Lines, Inc.. "Delta Air Lines System Timetable July 1, 1985." 1985-07-01. May 9, 2026. https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19850701.
