United States Army Corps of Topographical Engineers

S. Army Corps of Engineers: A Brief History. U.S. Army Corps of Engineers. [2015-01-16]. （原始内容存档于2014-11-29）.  Roster of the Corps of Topographical Engineers

Armstrong, Robert. Report of an Expedition Down the Zuñi and Colorado Rivers. United States. Army. Corps of Topographical Engineers (Public Printer). 1853