@book{29181,
	author = {Critt, Hyginov. and Lacuna Omeñaca, Susana and Hyginov (Asociacion)},
	title = {Guia para la elaboracion de un plan de limpieza y desinfeccion  },
	publisher = {Acribia },
	year = {2006.},
	address = {Zaragoza }
}