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
 

Koloski-Ostrow, A.-O. (2015). The Archaeology of Sanitation in Roman Italy: Toilets, Sewers, and Water Systems. Studies in the History of Greece and Rome. Chapel Hill: University of North Carolina Press.