@book{42389,
	author = {Bertelson, Paul.},
	title = {The Onset of literacy},
	publisher = {MIT Press},
	year = {1987, c1986.},
	series = {Cognition special issues},
	address = {Cambridge, Mass.},
	edition = {1st MIT Press ed.},
	note = {Papers presented at a symposium held in Acapulco in September 1984.}
}