AU  - Wijayananda, N.P.
TI  - The graphite industry in Sri Lanka
T2  - Science Education Series
CY  - NARESA
PB  - Colombo
KW  - Education
KW  - Earth Sciences
N1  - http://thakshana.nsf.ac.lk/slstic/NA-117/NA_117_i.pdf
ER  -