Reconnaissance and signal building
By: by Jasper S. Bilby.
Contributors: U.S. Coast and Geodetic Survey.
Series: Special publication -- no. 93; Serial -- no. 225; Special publication (U.S. Coast and Geodetic Survey) -- no. 93.; Serial (U.S. Coast and Geodetic Survey) -- no. 225.
Publisher: Govt. Print. Off.
Published: 1923
Place of publication: Washington, D.C
Language: eng
Number of pages: 77
Subjects: Triangulation.