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 `year` DESC, author) QQ WHERE `year`<2100 ORDER BY modified DESC LIM...' at line 1 Bibliographies | Miko Flohr
 

Combined Bibliography: Britannia and Document

Britannia
Document
Bowman, A. and J. Thomas (1983). Vindolanda: the Latin Writing-Tablets. London: Society for the Promotion of Roman Studi.