Text ( visual ) : unmediated Fenland survey : an essay in landscape and persistence / by David Hall and John Coles. -- London : English Heritage , 1994. -- xi, 170 p. : ill., maps (some col.) ; 30 cm. -- (Archaeological report ; [1994], 1). -- Bibliography: p. 159-164 ; Includes index. -- ISBN 1850744777 ; (BA2402608X) ; https://ci.nii.ac.jp/ncid/BA2402608X Author Heading(s): Hall, David ; Coles, J. M. (John M.). -- Subject Heading(s): LCSH : England -- Antiquities