@book{18505,
	author = {Hilgard, J. E.},
	title = {Determination of the length of a nautical mile,},
	publisher = {Bureau of Navigation, Navy Dept.,},
	year = {1882.},
	series = {U.S. Bureau of Navigation (Navy Dept.)  Naval professional papers,},
	address = {[Washington, D.C.]},
	note = {Cover title.}
}