Delta Air Lines System Timetable 1944 January 1
MLA
Delta Air Corporation. "Delta Air Lines System Timetable 1944 January 1." Delta Flight Museum. 1944-01-01, https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19440101.
APA
Delta Air Corporation (1944-01-01). Delta Air Lines System Timetable 1944 January 1. Retrieved from https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19440101
Chicago
Delta Air Corporation. "Delta Air Lines System Timetable 1944 January 1." 1944-01-01. April 30, 2026. https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19440101.
