@book{24111,
	author = {Olweus, Dan, 1931- and Filella, Roc.},
	title = {Conductas de acoso y amenaza entre escolares /},
	publisher = {Morata },
	year = {2004.},
	series = {Colección: Pedagogía. La pedagogía hoy.},
	address = {Madrid },
	edition = {2a ed}
}