@book{10733,
	author = {Inc., Cisco Systems. and Lewis, Wayne.},
	title = {Ccnp 4 :},
	publisher = {Cisco Press,},
	year = {2004.},
	series = {Cisco networking academy program.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/1587131412/chopaconline-20}
}