@book{7193,
	author = {Hewitt Paul G. and Escalona y García, Héctor Javier; },
	title = {Física conceptual /},
	publisher = {Prentice Hall,},
	year = {1999.},
	series = {Serie Awli},
	address = {México :},
	edition = {3a ed.},
	note = {Incluye apéndice y glosario}
}