TY  - GEN
AU  - Dharmaratne , P.G.R.
TI  - Gem industry of Sri Lanka
SN  - 9559370010
U1  - 338.475538 
PY  - 2005///
CY  - Colombo
PB  - The Geological Survey and Mines Bureau of Sri Lanka
KW  - GEM INDUSTRY SRI LANKA
KW  - ECONOMICS
ER  -