Delta Air Lines System Timetable March 2, 1989
MLA
Delta Air Lines, Inc.. "Delta Air Lines System Timetable March 2, 1989." Delta Flight Museum. 1989-03-02, https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19890302.
APA
Delta Air Lines, Inc. (1989-03-02). Delta Air Lines System Timetable March 2, 1989. Retrieved from https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19890302
Chicago
Delta Air Lines, Inc.. "Delta Air Lines System Timetable March 2, 1989." 1989-03-02. April 30, 2026. https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19890302.
