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1
by Hopkins, Edward J., Yee, Sam
Washington : Springfield, Va. : National Aeronautics and Space Administration ; For sale by the National Technical Information Service, 1977

Government Document Book
2
by Hopkins, Edward J.
Washington, D.C. : Springfield, Va. : National Aeronautics and Space Administration ; For sale by the Clearinghouse for Federal Scientific and Technical Information, 1967

Government Document Book
3
by Hopkins, Edward J., Nelson, Edgar R.
Washington : Springfield, Va. : U.S. National Aeronautics and Space Administration ; For sale by the National Technical Information Service, 1976

Government Document Book
4
by Hopkins, Edward J.
Washington, D.C. : [Springfield, Va.] : National Aeronautics and Space Administration ; [For sale by the National Technical Information Service], 1972

Government Document Book
5
by Hopkins, Edward J., Lovette, George H.
Washington : Springfield, Va. : National Aeronautics and Space Administration ; For sale by the National Technical Information Service, 1977

Government Document Book
6
by Hopkins, Edward J., Lovette, George H.
Washington : Springfield, Va. : U.S. National Aeronautics and Space Administration ; For sale by the National Technical Information Service, 1976

Government Document Book