@book{92193,
	author = {United States. and Leach, Smith S. and United States.},
	title = {Engineer field manual...},
	publisher = {Govt. print. off.,},
	year = {1912.},
	series = {[U. S. Engineer dept.] Professional papers of the Corps of engineers, U. S. Army.},
	address = {Washington,},
	edition = {4th (rev.) ed.},
	note = {"War department document no. 355. Office of the chief of engineers."}
}