Soils in Clwyd = Priddoed yng Nghlwyd
Thompson, T. R. E.
Harpenden Soil Survey of Great Britain (England and Wales),
1978
Book (x,162p,iv p. of plates: Pbk), 2 fold sheets ([2]p. : col. maps) in plastic envelope
Also available without maps. - English text, Welsh summary
Bibliography: p.132-134. - Includes index
Soils