@book{9661,
	author = {Ratto, Jorge A.},
	title = {Ecología para maestros},
	publisher = {Marymar},
	year = {1993},
	series = {El maestro en su acción cotidiana},
	address = {Buenos Aires},
	edition = {1ª ed.},
	note = {Glosario: p. 137-141}
}