@book{109432,
	author = {Albrecht, G�unter, and ebrary, Inc.},
	title = {Social prevention and the social sciences},
	publisher = {Walter de Gruyter,},
	year = {1991.},
	series = {Prevention and intervention in childhood and adolescence,},
	address = {Berlin ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10598285}
}