Maintenance inspection notes for Douglas DC-6/7 series aircraft.
APA Citation
United States. Flight Standards Service. (1967). Maintenance inspection notes for Douglas DC-6/7 series aircraft. [Washington: U.S. Govt. Print. Off.].
MLA Citation
United States. Flight Standards Service. Maintenance Inspection Notes for Douglas DC-6/7 Series Aircraft. [Washington: U.S. Govt. Print. Off.], 1967.
Warning: These citations may not always be complete (especially for serials).