Text ( visual ) : unmediated Proceedings of the Newcastle upon Tyne conference, 1989 / edited by P.R. Coss and S.D. Lloyd. -- Woodbridge, Suffolk : Boydell Press , 1991. -- 195 p., [16] p. of plates : ill. ; 25 cm. -- (Thirteenth century England ; 3). -- Conference sponsored by the University of Newcastle upon Tyne and Newcastle upon Tyne Polytechnic. -- ISBN 0851155480 ; (BA13551689) ; https://ci.nii.ac.jp/ncid/BA13551689 Author Heading(s): Coss, Peter R. ; Conference on Thirteenth Century England ; University of Newcastle upon Tyne ; Newcastle upon Tyne Polytechnic ; Lloyd, S. D. (Simon D.). -- Classification(s): LCC : DA225 ; DC19 : 942.03/4. -- Subject Heading(s): LCSH : Great Britain -- History -- 13th century -- Congresses ; LCSH : England -- Civilization -- Medieval period, 1066-1485 -- Congresses