https://biblioteca.cita-aragon.es/cgi-bin/koha/opac-search.pl?q=ccl=au%3AP%C3%83%C2%A9rez%20Garc%C3%83%C2%ADa%2C%20F%C3%83%C2%A9lix%20and%20se%3AHojas%20Divulgadoras%20%2F%20Ministerio%20de%20Agricultura&format=rss2 Search results for 'au:Pérez García, Félix and se:Hojas Divulgadoras / Ministerio de Agricultura' at 0 20