@book{1709,
	author = {Zubiría Samper, Miguel de and ZUBIRIA SAMPER, JULIAN DE},
	title = {Fundamentos de pedagogía conceptual : },
	publisher = {Editorial Plaza  Janes},
	year = {1997},
	series = {Selección Cultura Colombiana. Sociales},
	address = {Santafé de Bogotá},
	edition = {2a ed}
}