| 000 | 00333nam a2200097Ia 4500 | ||
|---|---|---|---|
| 942 | _cBK | ||
| 245 |
_aColored stones _bcourse introduction the colored stone market color in our lives the role of the gemologist what makes a gemstone |
||
| 260 |
_aThe Gemological Institute of America, America _c1994 |
||
| 082 | _a720 G.I.A | ||
| 300 | _a541 | ||
| 999 |
_c43372 _d43372 |
||