@book{24857,
	author = {Fernald, Robert Heywood,},
	title = {Incidental problems in gas-producer tests /},
	publisher = {Govt. Print. Off.,},
	year = {1909.},
	series = {U.S. Geological survey. Bulletin 393},
	address = {Washington,},
	note = {Issued also as House doc. 1553, 60th Cong., 2d sess.}
}