Finding the Way and Fixing the Boundary: The Science and Art of Western Map Making as Exemplified by William H. Emory and His Colleagues of the U.S. Corps of Topographical Engineers

Schafer, Rollie. "Finding the Way and Fixing the Boundary: The Science and Art of Western Map Making as Exemplified by William H. Emory and His Colleagues of the U.S. Corps of Topographical Engineers." Military History of the West 31, no. 1 (2001): 1-26.