@book{70846,
	author = {Sims, P.K. and Schulz, K. J.},
	title = {Geology and geochemistry of Early Proterozoic rocks in the Dunbar area, northeastern Wisconsin},
	publisher = {U.S. Geological Survey, Branch of Central Technical Reports},
	year = {1992.},
	series = {U.S. Geological Survey professional paper},
	address = {Denver, CO}
}