@book{191537,
	author = {Brewer, M. and Shaw, J.},
	title = {How many lone parents are receiving tax credits?},
	publisher = {The Institute for Fiscal Studies},
	year = {2006},
	address = {Londres},
	url = {\\Srvdatos\siis\docus\Documentos Internet\2012-Posteriores\2013\How many lone parents are receiving tax credits.pdf}
}