Delta Air Lines System Timetable 1944 June 1
MLA
Delta Air Corporation. "Delta Air Lines System Timetable 1944 June 1." Delta Flight Museum. 1944-06-01, https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19440601.
APA
Delta Air Corporation (1944-06-01). Delta Air Lines System Timetable 1944 June 1. Retrieved from https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19440601
Chicago
Delta Air Corporation. "Delta Air Lines System Timetable 1944 June 1." 1944-06-01. July 22, 2025. https://dlg.galileo.usg.edu/do:delta_dal-tt_dal-tt-19440601.
