@book{1238,
	author = {Concepts, Energy.},
	title = {Electricity Concepts unit 2 /},
	publisher = {Energy Concepts,},
	year = {1976.},
	address = {[S.l.] :},
	edition = {1St Edition.},
	url = {http://www.amazon.com/exec/obidos/ASIN/1557560021/chopaconline-20}
}