@book{2003,
	author = {Vandepitte, J. and Organizacion Mundial de la Salud and Engbaek, K},
	title = {Metodos basicos de laboratorio en bacteriologia clinica},
	publisher = {Organizacion Mundial de la Salud},
	year = {1993},
	address = {Ginebra},
	edition = {1° ed.}
}