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
 

Blake, M.E. (1959). Roman construction in Italy from Tiberius through the Flavians. Publications of the Carnegie Institution of Washington 616. Washington DC: Carnegie Institution.
Blake, M.E. (1947). Ancient Roman construction in Italy from the prehistoric period to Augustus. Publications of the Carnegie Institution of Washington 570. Washington DC: Carnegie Institution.