@book{50126,
	author = {Semmens, James P. and Krantz, Kermit E.},
	title = {El Mundo del adolescente :},
	publisher = {Compañia Editorial Continental, S.A.,},
	year = {[1973]},
	address = {Mexico :},
	note = {Titulo original en inglés: The adolescent experience.}
}