Delta Air Lines Worldwide Timetable December 1, 1998
MLA
Delta Air Lines, Inc.. "Delta Air Lines Worldwide Timetable December 1, 1998." Delta Flight Museum. 1998-12-01, https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19981201.
APA
Delta Air Lines, Inc. (1998-12-01). Delta Air Lines Worldwide Timetable December 1, 1998. Retrieved from https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19981201
Chicago
Delta Air Lines, Inc.. "Delta Air Lines Worldwide Timetable December 1, 1998." 1998-12-01. July 25, 2025. https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19981201.
