Delta Air Lines System Timetable 1949 November 1
MLA
Delta Air Lines, Inc.. "Delta Air Lines System Timetable 1949 November 1." Delta Flight Museum. 1949-11-01, https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19491101.
APA
Delta Air Lines, Inc. (1949-11-01). Delta Air Lines System Timetable 1949 November 1. Retrieved from https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19491101
Chicago
Delta Air Lines, Inc.. "Delta Air Lines System Timetable 1949 November 1." 1949-11-01. July 30, 2025. https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19491101.
