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1by Hubbard, Rolla
Published 1944New York, London, McGraw-Hill book company, inc., 1944.vii, 260 p. : incl. front., illus. ; 19 cm. -
2Published 1942New York, The Macmillan company, 1942.xix, 868 p. illus., fold. map, charts (part fold.) fold. tab., diagrs. 22cm.Table of Contents: “.... Airplane engines, by E. D. Perkins. - book 5. Meteorology, by H. H. Williams. - book 6. Communications...”