@book{292684,
	author = {Mateu, Marina and Maresca, Susana},
	title = {Ciencias naturales : biología 7 / Marina Mateu, Susana Maresca, Juan L. Botto (coordinador)},
	publisher = {A-Z},
	year = {1997},
	address = {Buenos Aires},
	note = {Tercer ciclo EGB.}
}