TY  - BOOK
AU  - Webster, Robert.
TI  - Gems: Their Sources, Descriptions and identification / 
SN  - 0 408 70573 6
U1  - H19 
PY  - 1984///
CY  - London WC2B 6AB : 
PB  - Butterworth & Co (Publishers) , 
KW  - Ruby
ER  -