Born
1944
Works
14
Crystals
Ian Mercer
Gemstones
Countryside Council for Wales Accounts 1
Countryside Council for Wales Accounts 1993-94
Les pierres précieuses
Volcanoes
The changing earth
Gemstones (Resources)
Gemstones and the environment
Oil (Resources & the Environment)
Oil (Resources Today)
Oils
Oils and the environment
Gemstones (Resources Today)
