You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'ORDER BY issue DESC, `year` DESC ) QQ WHERE `year`<2100 ORDER BY modified DES...' at line 1 Bibliographies | Miko Flohr
 

Guest, P., M. Luke and C. Pudney (2012). Archaeological evaluation of the extramural monumental complex ('the southern canabae') at Caerleon, 2011. Cardiff Studies in Archaeology Specialist Report 33. Cardiff: Cardiff University.