@book{182027,
	author = {Castarina, José Antonio.},
	title = {Piaget-Vigotsky},
	publisher = {Paidós},
	year = {1996.},
	series = {Paidos Educador},
	address = {Barcelona},
	edition = {1a ed.},
	note = {Includes bibliographical references (p. 138-139).}
}