1
by Purvis, Carolyn K.
[Washington, DC] : [Springfield, Va.] : National Aeronautics and Space Administration ; [National Technical Information Service, distributor], 1994
[Washington, DC] : [Springfield, Va.] : National Aeronautics and Space Administration ; [National Technical Information Service, distributor], 1994
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2
by Purvis, Carolyn K.
[Washington] : Springfield, Va. : National Aeronautics and Space Administration, Scientific and Technical Information Office ; For sale by the National Technical Information Service, 1979
[Washington] : Springfield, Va. : National Aeronautics and Space Administration, Scientific and Technical Information Office ; For sale by the National Technical Information Service, 1979
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3
by Purvis, Carolyn K.
Cleveland, OH : Lewis Research Center, 1977
Cleveland, OH : Lewis Research Center, 1977
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4
Washington, D.C. : [Springfield, Va.] : National Aeronautics and Space Administration, Scientific and Technical Information Branch ; [For sale by the National Technical Information Service], 1984
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