TY  - GEN
AU  - Webster, Robert
AU  - Anderson, B.W. 
TI  - Gems : : their sources, descriptions and identification
SN  - 0408011483
PY  - 1983///
CY  - London
PB  - Butterworths
KW  - GEMS
KW  - PRECIOUS STONES
KW  - GEMSTONES
KW  - Jewellery
ER  -