@book{148757,
	author = {Geological Survey (U.S.)   and Minnesota.},
	title = {Digital orthophoto sample files},
	publisher = {The Survey},
	year = {1993]},
	address = {[Reston, Va.]},
	note = {Title on disk label: DOQ's, Digital orthophoto quadrangles: "Olmsted County" project, Minnesota.}
}