Specifications for Boundary Surveys
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Boundary Surveys: Progress Report of the Committee on Surveying and Mapping Division
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Discussion of "Boundary Surveys"

Discussion of "Boundary Surveys"

Discussion of "Boundary Surveys

Boundary Surveys
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Discussion of "Topographical Surveys Made by the American Section of the International Boundary Commission, United States and Mexico"

Topographical Surveys Made by the American Section of the International Boundary Commission, United States and Mexico
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