Soils in Powys = Priddoedd ym Mhowys
Lea, John Winston.
Harpenden Soil Survey,
1975
Accompanied by fold. sheet (col. map) both items in plastic envelope
Bibliography: p.129-130. - Includes index
Includes a summary in Welsh
ISBN 0-7086-0004-2 without map : £0.50
Soils