4 books • 1 series
A Guide to the Freshwater, Brackish and Marine Algae of South Wales
Checklist of the Freshwater, Brackish and Marine Algae of South Wales, UK
Nutrient and Phytoplankton Studies in Llangorse Lake, a Eutrophic Lake in the Brecon Beacons National Park (Journal Offprints S.)
Natural History of Slapton Ley Nature Reserve (Journal Offprints S.)