APA Citation

United States. Army. Corps of Engineers. (1944). Railroad map of the United States. Washington, D.C.: Army Corps of Engineers.

Chicago Style Citation

United States. Army. Corps of Engineers. Railroad Map of the United States. Washington, D.C.: Army Corps of Engineers, 1944.

MLA Citation

United States. Army. Corps of Engineers. Railroad Map of the United States. Washington, D.C.: Army Corps of Engineers, 1944.

Warning: These citations may not always be 100% accurate.