@book{27675,
	author = {Machin, James Stewart, and Vaneck, James Franklin,},
	title = {Effect of fluorspar on silicate melts with special reference to mineral wool,},
	year = {1940.},
	series = {Illinois.  State geological survey.  Report of investigations},
	address = {Urbana, Ill.,},
	note = {At head of title: State of Illinois ... Department of registration and education ... Division of the State geological survey ...}
}