Northwest Orient Airlines System Timetable 1979 October 28
MLA
Northwest Orient Airlines. "Northwest Orient Airlines System Timetable 1979 October 28." Delta Flight Museum. 1979-10-28, https://dlg.galileo.usg.edu/do:delta_nwa-tt_nwa-tt-19791028.
APA
Northwest Orient Airlines (1979-10-28). Northwest Orient Airlines System Timetable 1979 October 28. Retrieved from https://dlg.galileo.usg.edu/do:delta_nwa-tt_nwa-tt-19791028
Chicago
Northwest Orient Airlines. "Northwest Orient Airlines System Timetable 1979 October 28." 1979-10-28. October 4, 2026. https://dlg.galileo.usg.edu/do:delta_nwa-tt_nwa-tt-19791028.
