@book{18377,
	author = {United States},
	title = {Nautical chart symbols, abbreviations, and terms},
	publisher = {The Service},
	year = {[1990]},
	address = {[Washington, D.C.?]},
	edition = {9th ed., Jan. 1990.},
	note = {Shipping list no.: 90-251-P.}
}