@book{9387,
	author = {Postic, Marcel and De Ketele, Jean-Marie},
	title = {Observar las situaciones educativas},
	publisher = {Narcea},
	year = {1992},
	series = {Educación hoy. Estudios},
	address = {Madrid},
	note = {Indice autores: p. 257-260}
}