https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?q=ccl=Provider%3ARocca%20and%20su-to%3ADERECHO%20PENAL%20and%20su-to%3ABAL%C3%83%C2%8DSTICA&format=rss2 Search results for 'Provider:Rocca and su-to:DERECHO PENAL and su-to:BALÍSTICA' at Biblioteca UGB 0 20