International Boundary Commission Triangular and Traverse Sketches
D.C: Government Printing Office Washington, 1931. INTERNATIONAL BOUNDARY COMMISSION TRANGULAR AND TRAVERSE SKETCHES. NOEL J. OLGIVIE AND JAMES VAN WAGENEN. Published by: E. C. Barnard, E. Lester Jones, James H. Van Wagenen, J. D. Craig, J. J. McArthur, Noel J. Ogilvie, O. H. Tittmann, W. F. King: Government Printing Office.....