@book{25402,
	author = {Richards, Ralph Webster, and Mansfield, George Rogers,},
	title = {Geology of the phosphate deposits northeast of Georgetown, Idaho /},
	publisher = {Govt. Print. Off.,},
	year = {1914.},
	series = {U.S. Geological survey. Bulletin 577},
	address = {Washington,},
	note = {Includes index.}
}