@book{34913,
	author = {Ospina Fernández, Guillermo. and Ospina Acosta, Eduardo.},
	title = {Teoria general del contrato y de los demas actos o negocios jurídicos /},
	publisher = {Temis,},
	year = {1994.},
	address = {Bogotá :},
	edition = {4a ed. actualizada.}
}