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The methods used in primary level and triangulation work in unsettled and broken country (1909)
Stewart, John Truesdale · leaf 242
JDeTa/Jec/ c/raw/nj ofc? >Sctwec/ T/mher S/<?r?cr/. If Tt i T A. rX -vsimmtimmmMBummmmmmmmm* and b 1Geodesy · Surveying · Triangulation · Theses
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
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