@book{2133,
	author = {Carranza, Ariel. and Chernizki, Marta.},
	title = {Ciencias Naturales 1 :},
	publisher = {Kapelusz,},
	year = {2011.},
	series = {Nuevos desafíos para pensar},
	address = {Buenos Aires :},
	edition = {1ª ed.}
}