@book{1898,
	author = {Parr, E. A.},
	title = {Control Engineering /},
	publisher = {Butterworth-Heinemann,},
	year = {1996.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/0750624078/chopaconline-20}
}