@book{215974,
	author = {Hoffman, Lynn. and Cecchin, Gianfranco, and ebrary, Inc.},
	title = {Exchanging voices},
	publisher = {Karnac Books,},
	year = {2003.},
	series = {Systemic thinking and practice series},
	address = {London :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10475816}
}