@book{34750,
	author = {Ospina Fernández, Guillermo. and Ospina Acosta, Eduardo.},
	title = {Regimen general de las obligaciones /},
	publisher = {Editorial Temis,},
	year = {2005.},
	address = {Bogotá :},
	edition = {8a ed. actualizada / Eduardo Ospina Acosta.}
}