Delta Air Lines System Timetable February 1, 1992
MLA
Delta Air Lines, Inc.. "Delta Air Lines System Timetable February 1, 1992." Delta Flight Museum. 1992-02-01, https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19920201.
APA
Delta Air Lines, Inc. (1992-02-01). Delta Air Lines System Timetable February 1, 1992. Retrieved from https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19920201
Chicago
Delta Air Lines, Inc.. "Delta Air Lines System Timetable February 1, 1992." 1992-02-01. August 8, 2025. https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19920201.
