The Arts & Sciences
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Aerodynamics of the Helicopter.
New York, NY: The Macmillan Company, no date [1952]. [Aviation] GALLEY PROOF. A4 photocopied paper, ring-bound in black plastic with clear plastic covers. (28 x 24cm), lacking pages 2 and 3 (one sheet of paper). pp.[6] 1; 4-343. A small blank area of the first page cut away. Browned throughout..... More
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