@book{100936,
	author = {Villamarzo, Pedro F.},
	title = {Características y tratamiento de la sexualidad infantil :},
	publisher = {Narcea,},
	year = {1979},
	address = {Madrid :},
	url = {http://www.ceres. chapingo.mx:2048/login?url=http://10.13.5.2/tesis/112596.pdf.}
}