@book{997,
	author = {Ashley, Ray.},
	title = {Electrical Estimating},
	publisher = {McGraw Hill,},
	year = {1961.},
	address = {[S.l.] :},
	edition = {Third Ed.},
	note = {Import.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0070024030/chopaconline-20}
}