Source data found1. Reflexiones sobre los proyectados ferro-carriles de Andalucia y Extremadura, 1858 port. (Owen Charles Dalhousie Ross)
2. Spain and the war with Morocco, 1860 port. (O. C. Dalhousie Ross)
3. WWW BL OPAC, 17-6-2005 Ross, Owen Charles Dalhousie