Results of leveling refraction tests by the National Geodetic Survey
By: Charles T. Whalen
Contributors: National Geodetic Survey (U.S.)
Series: NOAA technical report NOS -- 92. NGS ; -- 22; NOAA technical report NOS -- 92; NOAA technical report NOS -- 22
Publisher: U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Ocean Survey
Published: 1982
Place of publication: Rockville, Md
Language: eng
Number of pages: 20
Subjects: Leveling -- United States; Refraction
Notes: "National Geodetic Survey."

"November 1981."

Bibliography: p. 15-16