AU  - Pitawala, H.M.T.G.A.
AU  - Fernando, G.W.A.R.
ED  - 
TI  - shrii la\nkawe Kanija sampath
T2  - Science Books Series
SN  - 9789555900904
CY  - NSF
PB  - Colombo
KW  - Geology
N1  - http://thakshana.nsf.ac.lk/slstic/NA-383/NA-383.pdf
ER  -