Books by Dorris M. Ehret:
Books in the extended shelves:
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Ehret, Dorris M.: An analysis of the applicability of the hypersonic similarity law to the study of flow about bodies of revolution at zero angle of attack (National Advisory Committee for Aeronautics, 1950), also by Victor I. Stevens, Vernon J. Rossow, and United States National Advisory Committee for Aeronautics (page images at HathiTrust)
Find more by Dorris M. Ehret at your library, or elsewhere.