@book{27067,
	author = {Larsen, Esper S. and Berman, Harry,},
	title = {The microscopic determination of the nonopaque minerals.},
	publisher = {U.S. Govt. print. off.,},
	year = {1934.},
	address = {Washington,},
	edition = {2d ed.},
	note = {At head of title : United States Dept. of the interior.}
}