@book{213290,
	author = {Ruggiero, María Laura},
	title = {Porqué se pelean los chicos en la escuela},
	publisher = {Noveduc},
	year = {2009.},
	series = {Ensayos y experiencias. Interlíneas},
	address = {Buenos Aires, Argentina},
	edition = {1 era ed.}
}