Bogala

ERDOSH, G., 1970: GEOLOGY OF BOGALA MINE, CEYLON AND THE ORIGIN OF VEIN-TYPE GRAPHITE.- MINERAL DEPOSITA (BERL.) 5, P.375-382DOBNER, A., GRAF, W. & HAHN-WEINHEIMER, P. 1978: STABLE CARBON ISOTOPES OF GRAPHITE FROM BOGALA MINE, SRI LANKA.- LITHOS, 11, P.251-255, OSLOWIJESEKERA, N., 1984: MINERAL EXPLORATION IN SRI LANKA.- MINING MAG. MAY 1984, P.464-467HERATH, J.W., 1975: MINERAL RESOURCES OF SRI LANKA.- GEOL. SURV. DEPT. SRI LANKA, ECON. BULL. NO.2FERNANDO, L.J.D., 1950: THE GEOLOGY AND MINERAL DEPOSITS OF CEYLON.- LONDON, IMPERIAL INSTITUTESILVA, DE, P.H. 1967: AN INTRODUCTION TO THE GEOLOGY OF CEYLON.- NATIONAL MUSEUMS OF CEYLON PUBLICATIONINDUSTR. MINERALS DIRECTORY 1982, P.398, MIN. TRADE NOTES, 2, 1978, P.9