@book{1968,
	author = {ECA and Alvaro Artiga-Gonzalez; Francisco Javier Ibistes;Ernesto A. Selva.},
	title = {El desafio de la alternancia en el poder},
	publisher = {Universidad "Jose Simeon Cañas"},
	year = {2003.},
	series = {656 / jun},
	address = {San salvador, El salvador:}
}