The preservation of triangulation station marks ...
Series: Its Serial; 632; Serial (U.S. Coast and Geodetic Survey) ;; 632.
Publisher: U.S. Govt. print. off.
Published: 1941
Place of publication: [Washington
Language: eng
Number of pages: 13
Subjects: Triangulation.; Geodesy -- United States.
Notes: At head of title: ... U.S. Dept. of commerce. Jesse H. Jones, secretary. Coast and geodetic survey. Leo Otis Colbert, director.