@book{32859,
	author = {Whitfield, John Frederic.},
	title = {Electrical craft principles : },
	publisher = {Institution of Engineering and Technology,},
	year = {c2008.},
	series = {Crafts studies},
	address = {Stevenage, Eng. :},
	edition = {5th ed.},
	note = {Includes index.}
}