APA (7th ed.) Citation

Goddard Space Flight Center & Lerch, F. J. (1988). An improved error assessment for the GEM-T1 gravitational model. National Aeronautics and Space Administration, Goddard Space Flight Center.

Chicago Style (17th ed.) Citation

Goddard Space Flight Center and F. J. Lerch. An Improved Error Assessment for the GEM-T1 Gravitational Model. Greenbelt, Md.: National Aeronautics and Space Administration, Goddard Space Flight Center, 1988.

MLA (9th ed.) Citation

Goddard Space Flight Center and F. J. Lerch. An Improved Error Assessment for the GEM-T1 Gravitational Model. National Aeronautics and Space Administration, Goddard Space Flight Center, 1988.