1. Spodic horizon humus;Anderson,1981
2. Weathering in Scottish and Norwegian catchments;Bain,1990
3. Assessment of Climatic Conditions in Scotland. 3. The Bioclimatic Sub-Regions;Birse,1971
4. The Phytocoenonia of Scotland: Additions and Revisions;Birse,1984
5. Plant Communities and Soils of the Lowland and Southern Upland Regions of Scotland;Birse,1976