@book{27685,
	author = {Aylwin de Barros, Nidia  and Jimenez de Barros, Monica },
	title = {Un enfoque operativo de la metodología de trabajo social / },
	publisher = {Lumen, Hvmanitas, },
	year = {1999},
	address = {Buenos Aires : },
	edition = {6ª ed.},
	note = {Bibliografia: p 185-190}
}