Gems: Their sources, descriptions and identification
Webster, Robert
Gems: Their sources, descriptions and identification - London: Butterworths & Co. (Publishers) Ltd., 1975 - xviii, 931p.
Chemical technology
Gemstones
671.15 / L5
Gems: Their sources, descriptions and identification - London: Butterworths & Co. (Publishers) Ltd., 1975 - xviii, 931p.
Chemical technology
Gemstones
671.15 / L5