Derechos de autor 1985 Luis Anel Rodríguez, Miguel Abad Gavín, J.C. Boixo Pérez-Holanda, Juan Carlos Domínguez Fernández de Tejerina
Except where otherwise noted, this item's license is described as Derechos de autor 1985 Luis Anel Rodríguez, Miguel Abad Gavín, J.C. Boixo Pérez-Holanda, Juan Carlos Domínguez Fernández de Tejerina