Coll, Blanche D.; Keith, Jean E.; Rosenthal, Herbert H. (1958). The Corps of Engineers: Troops and Equipment. Washington, DC: Office of the Chief of Military History, Department of the Army. pp. 361–362. OCLC934025581. Archived from the original on 8 November 2010. Retrieved 31 January 2020.
Coll, Blanche D.; Keith, Jean E.; Rosenthal, Herbert H. (1958). The Corps of Engineers: Troops and Equipment. Washington, DC: Office of the Chief of Military History, Department of the Army. pp. 361–362. OCLC934025581. Archived from the original on 8 November 2010. Retrieved 31 January 2020.
worldcat.org
search.worldcat.org
Coll, Blanche D.; Keith, Jean E.; Rosenthal, Herbert H. (1958). The Corps of Engineers: Troops and Equipment. Washington, DC: Office of the Chief of Military History, Department of the Army. pp. 361–362. OCLC934025581. Archived from the original on 8 November 2010. Retrieved 31 January 2020.