Tham khảo Keystone_B-3

Tham khảo Keystone_B-3

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Tài liệu

Andrade, John. U.S. Military Aircraft Designations and Serials since 1909. Leicester, UK: Midland Counties Publications, 1979, pp. 43, 135. ISBN 0-904597-22-9.
The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985). London: Orbis Publishing, 1985, p. 2255.
Maurer, Maurer. Combat Squadrons of the Air Force, World War II. Maxwell AFB, Alabama: Air Force Historical Studies Office, 1982. ISBN 0-89201-097-5.

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Tài liệu tham khảo

WikiPedia: Keystone_B-3 http://1000aircraftphotos.com/APS/4234.htm http://www.joebaugher.com/usaf_bombers/b3.html http://www.nationalmuseum.af.mil/factsheets/factsh... http://www.nationalmuseum.af.mil/factsheets/factsh... https://web.archive.org/web/20080123162611/http://...