Levine, Isaac Don 1892-1981 Mitchell : pioneer of air power / Isaac Don Levine. - 1st ed. - New York : Duell, Sloan and Pearce, 1943. - viii pages, 2 leaves, 420 p. : frontispiece,portraits ; 22 cm. - 355.333:358.4(73)(092)W.Mitchell . With hardcover For Ruth Index: pp. 407-420 Subjects--Personal Names: Mitchell, William 1879-1936 Subjects--Topical Terms: Aeronautics, Military--United States Universal Decimal Class. No.: 355.333:358.4(73)(092)W.Mitchell