National Aeronautics and Space Administration, Scientific and Technical Information Office : for sale by the Supt. of Docs., U.S. Govt. Print. Off.1977.<ME51-32>
国立国会図書館
件名Geodetic satellites. Geodetic research -- United States.
compiled and edited for NASA by the American Geophysical UnionNational Aeronautics and Space Administration, Scientific and Technical Information Office1977