Economic geology of Sri Lanka
Herath, J. W.
Economic geology of Sri Lanka - Colombo Natural Resources Energy and Science Authority of SriLanka - 207p. 27cm - Natural resources series - No. 1 .
EARTH SCIENCES
ECONOMIC GEOLOGY
553.095493 / HER
Economic geology of Sri Lanka - Colombo Natural Resources Energy and Science Authority of SriLanka - 207p. 27cm - Natural resources series - No. 1 .
EARTH SCIENCES
ECONOMIC GEOLOGY
553.095493 / HER