Johnson, Edward C., 1930- Marine Corps aviation : : the early years, 1912-1940 / [electronic resource] / by Edward C. Johnson ; edited by Graham A. Cosmas.. — Washington : : History and Museums Division, Headquarters, U.S. Marine Corps : : For sale by the Supt. of Docs., U.S. Govt. Print. Off.,, 1977.. — vii, 106 p. : : ill. ; 27 cm.