@book{17495,
	author = {Rosas, Ricardo and Sebastián, Christian},
	title = {Piaget, Vigotski y Maturana: Constructivismo a tres Voces /},
	publisher = {AIQUE,},
	year = {2001.},
	series = {Psicologçia Cognitiva y Educación},
	address = {Buenos Aires :}
}