https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?q=ccl=se%2Cphr%3A%22Historia%20Constitucional%20de%20El%20Salvador%22%20and%20au%3AM%C3%83%C2%A9ndez%2C%20Jos%C3%83%C2%A9%20Mar%C3%83%C2%ADa&format=rss2 Search results for 'se,phr:"Historia Constitucional de El Salvador" and au:Méndez, José María' at Biblioteca UGB 0 20