1. The Soils and Vegetation of Areas Affected by Mining for Nonferrous Metalliferous Ores, with Special Reference to Cadmium, Copper, Lead and Zinc;Alloway,1969
2. Loss-on-ignition as an estimate of organic matter and organic carbon in non-calcareous soils;Ball;J. Soil Sci.,1964
3. Trace elements in spalerite, galena and associated minerals from the British Isles;El Shazly;Trans. Inst. Mining Metal.,1956
4. Influence of mines upon land and livestock in Cardiganshire;Griffith;J. Agr. Sci.,1918
5. The mining district of north Cardiganshire and west Montgomeryshire;Jones;Geol. Surv. Gt. Brit., Mem. Geol. Surv., Spec. Rept. Mineral Resources Gt. Brit.,1922