@book{13487,
	author = {Say, M.G.},
	title = {Introduction to the unified theory of electromagnetic machines /},
	publisher = {Pitman Publishing,},
	year = {1971.},
	address = {[S.l.] :},
	edition = {1St Edition.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0273360000/chopaconline-20}
}