Tolong jelaskan mengenai Daftar pustaka dari Douglas DC-4

Blewett, R. Survivors (2007). Coulsden U.K.: Aviation Classics. ISBN 978-0-9530413-4-3.

Francillon, René (1979). McDonnell Douglas Aircraft Since 1920: Volume I. London: Putnam. ISBN 0-87021-428-4.

Pearcy, Arthur (1995). Douglas Propliners: DC-1–DC-7. Shrewsbury: Airlife Publishing. ISBN 1-85310-261-X.

Yenne, Bill (1985). McDonnell Douglas: A Tale of Two Giants. Greenwich, Conn.: Bison Books. ISBN 0-517-44287-6.

Berry, Peter et al. The Douglas DC-4. Tonbridge, Kent, UK: Air-Britain (Historians) Ltd, 1967.

Life magazine photos by Eliot Elisofon of first production batch of DC-4s being completed (partly outdoors) as military C-54s (note absence of cargo door on these), and including early air-to-air photos of 42-10237 the first DC-4/C-54 to fly