Manual of first-order leveling
By: by Henry G. Avers.
Contributors: U.S. Coast and Geodetic Survey.
Series: Special publication -- no. 140; Special publication (U.S. Coast and Geodetic Survey) -- no. 140.
Publisher: U.S. Govt. Printing Office
Published: 1939
Place of publication: Washington, D.C
Language: eng
Number of pages: 93
Subjects: Leveling