Derechos de autor 1986 Miguel Abad Gavín, Luis Anel Rodríguez, Juan Carlos Domínguez Fernández de Tejerina, J.C. Boixo Pérez-Holanda
Except where otherwise noted, this item's license is described as Derechos de autor 1986 Miguel Abad Gavín, Luis Anel Rodríguez, Juan Carlos Domínguez Fernández de Tejerina, J.C. Boixo Pérez-Holanda