@book{10454,
	author = {Alayón, Norberto},
	title = {Definiendo al trabajo social},
	publisher = {Humanitas},
	year = {1987},
	series = {Desarrollo Social},
	address = {Buenos Aires},
	edition = {2ª ed. aum. y corr.},
	note = {Contiene referencias bibliográficas}
}