J. M. Ragg
2 published titles
The classification of some British soils according to the comprehensive system of the United States
1 edition
- ISBN: 0901128686
- Soil Survey of Great Britain (England and Wales)
- 1973
- Details
Soils and there use in Midland and Western England
(Contributor)
1 edition
- ISBN: 0708402968
- Soil Survey of England and Wales
- 1984
- Details
