@book{219336,
	author = {United States},
	title = {Dredging contracts awarded},
	publisher = {Navigation Data Center},
	address = {Alexandria, VA},
	note = {Description based on: FY 1993; title from caption (viewed on Feb. 21, 2007)},
	url = {http://purl.access.gpo.gov/GPO/LPS78771}
}