@book{30304,
	author = {Ekren, E. B. and Frischknecht, Frank C.,},
	title = {Geological-geophysical investigations of bedrock in the Island Fall quadrangle, Aroostook and Penobscot Counties, Maine,},
	publisher = {U.S. Govt. Print. Off.,},
	year = {1967.},
	series = {Geological Survey professional paper},
	address = {Washington,}
}