@book{2103,
	author = {Last, John M and tr. Fernando Fontán Fontán},
	title = {Diccionario de epidemiología /},
	publisher = {Salvat,},
	year = {1989.},
	series = {Salud Pública},
	address = {Barcelona :},
	note = {Título original: A dictionary of epidemiology
Bibliografía: p. 197-200}
}