Zilkoski, D. B., D'Onofrio, J. D., & Frakes, S. J. (1997). Guidelines for establishing GPS-derived ellipsoid heights (standards, 2 cm and 5 cm), version 4.3. U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Ocean Service, National Geodetic Survey.
Chicago Style (17th ed.) CitationZilkoski, David B., Joseph D. D'Onofrio, and Stephen J. Frakes. Guidelines for Establishing GPS-derived Ellipsoid Heights (standards, 2 Cm and 5 Cm), Version 4.3. Silver Spring, MD: U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Ocean Service, National Geodetic Survey, 1997.
MLA (9th ed.) CitationZilkoski, David B., et al. Guidelines for Establishing GPS-derived Ellipsoid Heights (standards, 2 Cm and 5 Cm), Version 4.3. U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Ocean Service, National Geodetic Survey, 1997.