@book{12585,
	author = {Pregitzer, Karl E. and United States.},
	title = {Soil survey, Muskegon County, Michigan},
	publisher = {U.S. Soil Conservation Service; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.]},
	year = {1968.},
	address = {Washington]},
	note = {Cover title.}
}