@book{225834,
	author = {Pontecorvo, Clotilde. and ebrary, Inc.},
	title = {Writing development},
	publisher = {John Benjamins Pub. Co.,},
	year = {c1997.},
	series = {Studies in written language and literacy ;},
	address = {Amsterdam ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10488455}
}