Derechos de autor 1984 José María Villar Lacilla, Paulino de Paz Cabello, César Ángel Chamorro Álvarez, Maximino Fernández Caso
Except where otherwise noted, this item's license is described as Derechos de autor 1984 José María Villar Lacilla, Paulino de Paz Cabello, César Ángel Chamorro Álvarez, Maximino Fernández Caso