@book{129177,
	author = {Clifford-Poston, Andrea. and Roberts, Liz. and ebrary, Inc.},
	title = {A playworker's guide to understanding children's behaviour},
	publisher = {Karnac,},
	year = {2008.},
	address = {London ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10463839}
}