@book{25789,
	author = {Tucker, W. Burling, and Waring, Clarence A. and California State Mining Bureau.},
	title = {Mines and mineral resources of the counties of El Dorado, Placer, Sacramento, Yuba,},
	publisher = {California state printing office,},
	year = {1917.},
	address = {Sacramento,},
	note = {At head of title: California state mining bureau.}
}