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Start Over You searched for: Author Civil Aeronautics Administration Remove constraint Author: Civil Aeronautics Administration Catalog Issue Year Decade 1940 - 1949 Remove constraint Catalog Issue Year Decade: 1940 - 1949

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524. Civil aeronautics journal, v. 3, no. 9; May 15, 1942.

529. Instrument approach procedures, Apr. 1, 1942.