An improved model of the earth's gravitational field
Subtitle: GEM-T1
By: J.G. Marsh ... [et al.].
Contributors: Marsh, J. G.; Goddard Space Flight Center.
Series: NASA technical memorandum -- 4019.
Publisher: National Aeronautics and Space Administration, Goddard Space Flight Center; For sale by the National Technical Information Service]
Published: 1987
Place of publication: [Greenbelt, Md.?]; [Springfield, Va
Language: eng
Format: Microform
Subjects: Gravitational fields.
Notes: Distributed to depository libraries in microfiche.

Microfiche. [Washington, D.C.? : National Aeronautics and Space Administration], 1987. 4 microfiches.