@book{13912,
	author = {Langsdorf.},
	title = {Theory of alternating-current machinery /},
	publisher = {Mcgraw Hill,},
	year = {1955.},
	address = {[S.l.] :},
	edition = {2nd Edition.},
	url = {http://www.amazon.com/exec/obidos/ASIN/B001ROHECK/chopaconline-20}
}