@book{28176,
	author = {Landes, Kenneth K. and Ehlers, George Marion,},
	title = {Geology of the Mackinac Straits region and sub-surface geology of northern Southern Peninsula,},
	year = {1945.},
	series = {Michigan.  Dept. of Conservation.  Geological Survey Division.  Publication 44.  Geological series,},
	address = {Lansing,},
	note = {"Published as a part of the Biennial report of the Geological Survey Division in 1944."}
}