Delta Air Lines Worldwide Timetable June 1, 1997
MLA
Delta Air Lines, Inc.. "Delta Air Lines Worldwide Timetable June 1, 1997." Delta Flight Museum. 1997-06-01, https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19970601.
APA
Delta Air Lines, Inc. (1997-06-01). Delta Air Lines Worldwide Timetable June 1, 1997. Retrieved from https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19970601
Chicago
Delta Air Lines, Inc.. "Delta Air Lines Worldwide Timetable June 1, 1997." 1997-06-01. August 9, 2025. https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19970601.
