@book{25149,
	author = {Loughlin, G. F.},
	title = {The gabbros and associated rocks at Preston, Connecticut /},
	publisher = {Govt. Print.Off.,},
	year = {1912.},
	series = {U.S. Geological survey. Bulletin 492},
	address = {Washington,},
	note = {Includes index.}
}