First-order leveling
Contributors: U.S. Coast and Geodetic Survey
Series: Serial no -- 502; Serial (U.S. Coast and Geodetic Survey) -- 502
Publisher: U.S. G.P.O.
Published: 1931
Place of publication: Washington
Language: eng
Subjects: Leveling -- United States; Bench-marks -- United States
Notes: At head of title: U.S. Department of Commerce, R.P. Lamont, Secretary ; Coast and Geodetic Survey, R.S. Patton, Director