@book{6069,
	author = {Rodríguez Rodríguez, Melida Guisela and Castillo Santos, Ángel Arturo},
	title = {Problemas mucogingivales en escolares de los departamentos de Jalapa, Jutiapa y Santa Rosa. /},
	publisher = {USAC,},
	year = {1994},
	address = {Guatemala :},
	url = {http://biblioteca.usac.edu.gt/tesis/09/09_1153.pdf}
}