Books by Sylvia Doughty Fries:
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Fries, Sylvia Doughty: NASA Engineers and the Age of Apollo (HTML at NASA)
Additional books by Sylvia Doughty Fries in the extended shelves:
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Fries, Sylvia Doughty: NASA engineers and the age of Apollo (National Aeronautics and Space Administration, Scientific and Technical Information Program :, 1992), also by United States. National Aeronautics and Space Administration. Scientific and Technical Information Program (page images at HathiTrust)
Find more by Sylvia Doughty Fries at your library, or elsewhere.