@book{27698,
	author = {Li, K. C.  and Wang, Ch'ung-Yu, },
	title = {Tungsten : Its History, Geology, Ore-dressing, Metallurgy, Chemistry, Analysis, Applications, and Economics /},
	publisher = {Reinhold Publishing Corporation, },
	year = {1955},
	address = {New York :},
	edition = {3rd.ed.}
}