@book{12921,
	author = {Dawes, Chester L.},
	title = {Electrical engineering vol 1 - direct currents /},
	publisher = {McGraw Hill,},
	year = {1952.},
	address = {[S.l.] :},
	edition = {4th ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/B0029UB4JU/chopaconline-20}
}