@book{6006,
	author = {Sverzut, José Umberto.},
	title = {Redes GSM, GPRS, EDGE e UMTS :},
	publisher = {Érica,},
	year = {2015.-},
	address = {São Paulo :},
	edition = {4. ed. rev. e atual. -},
	note = {Inclui índice.}
}