@book{46212,
	author = {Boszormenyi-Nagy, Ivan. and Spark, Geraldine M.},
	title = {Lealtades invisibles /  },
	publisher = {Amorrortu,  },
	year = {2003},
	address = {Buenos Aires : },
	note = {Traducción de: Invisible loyalties: Reciprocity in intergenerational family therapy}
}