@book{30522,
	author = {Ludwig, Oswald A. and McCarthy, Willard J.},
	title = {Metalwork; technology and practice /},
	publisher = {McKnight & McKnight,},
	year = {c1969.},
	address = {Bloomington, Ill. :},
	edition = {5th ed.},
	note = {Includes index.}
}