edited by P.R. Coss and S.D. Lloyd
Boydell Press c1986 Thirteenth century England, 1
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edited by G.J. Tatlock
A. Hilger c1986 Institute of Physics conference series, no.78
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organized by the Institution of Civil Engineers and held in Newcastle upon Tyne on 13-15 March, 1985
T. Telford 1985
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