Gunther, Birgit
Tables of gemstone identification - Kirschweiler Verlagsbuchhandlung Elisabeth Lenzen 1988 - 162p. : photos., tables
3980029239
GEMMOLOGY
549.091(083.86) / G8
Tables of gemstone identification - Kirschweiler Verlagsbuchhandlung Elisabeth Lenzen 1988 - 162p. : photos., tables
3980029239
GEMMOLOGY
549.091(083.86) / G8