@book{10249,
	author = {Bonsteel, Jay A. and Elwell, J. Ambrose},
	title = {Physical land conditions in Tama county, Iowa.},
	publisher = {United States Dept. of agriculture, Soil conservation service,},
	year = {1943.},
	series = {U.S. Soil conservation service. Physical land survey},
	address = {Washington, D.C.,}
}