Gunaratne, H.S.
Rocks and minerals of Ceylon - Colombo Dept. of National Museums 1967 - 58p.: photos - Ceylon National Museums handbook series.1 .
ROCKS
MINERAL DEPOSITS-Sri Lanka
549(548.7) / G8
Rocks and minerals of Ceylon - Colombo Dept. of National Museums 1967 - 58p.: photos - Ceylon National Museums handbook series.1 .
ROCKS
MINERAL DEPOSITS-Sri Lanka
549(548.7) / G8