Gems: Their Sources,Descriptions and Identification
Webster, Robert
Gems: Their Sources,Descriptions and Identification Robert Webster - 4th ed - London Butterowrths 1983 - xxii,1006p.
0408011483
Geology
553.8 / WEB A
Gems: Their Sources,Descriptions and Identification Robert Webster - 4th ed - London Butterowrths 1983 - xxii,1006p.
0408011483
Geology
553.8 / WEB A