The graphite industry in Sri Lanka
Wijayananda , N.P.
The graphite industry in Sri Lanka - Colombo Natural resources energy & science authority 1987 - 95 p. 22 cm. - Science Education Series:24 .
EXPLORATION FOR GRAPHITE
MINERALOGY
GENERAL GEOLOGY
GRAPHITE INDUSTRY SRI LANKA
553.26095493 / WIJ
The graphite industry in Sri Lanka - Colombo Natural resources energy & science authority 1987 - 95 p. 22 cm. - Science Education Series:24 .
EXPLORATION FOR GRAPHITE
MINERALOGY
GENERAL GEOLOGY
GRAPHITE INDUSTRY SRI LANKA
553.26095493 / WIJ