TY - GEN AU - Voll , G. AU - Kleinschrodt , R. TI - The Crystalline Crust of Sri Lanka - part 11: excursion guide U1 - 555.493 PY - 1991/// CY - Colombo PB - Geological Survey Department KW - ECONOMIC GEOLOGY SRI LANKA KW - CRYSTALLINE SRI LANKA KW - NATURAL SCIENCES KW - GEOLOGY SRI LANKA ER -