@book{92323,
	author = {United States. and Leach, Smith S.},
	title = {Engineer field manual ...},
	publisher = {Govt. Print. Off.,},
	year = {1917.},
	series = {[U. S. Engineer Dept.] Professional papers of the Corps of Engineers, U. S.  Army,},
	address = {Washington,},
	edition = {5th (rev.) ed.},
	note = {"War department document no. 355.  Office of the Chief of Engineers."}
}