Amddiffyn glannau dyfrffyrdd : arweiniad i asesu a rheoli erydiad = Waterway bank protection : a guide to erosion assessment and management.
Great Britain.Environment Agency.
Bristol : Environment Agency,
1999.
Teitl clawr = Cover title.
In pocket in back cover: Waterway bank protection : a field manual.
Soil erosion
Soil conservation
Streambank planting