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Geology of the country around Alutgama

Colombo Geological Survey Department 1965 . xi, 111, [11]p. 24cm x 18cm .

Colombo Geological Survey and Mines Bureau 1995 . ix, 52p. 20 cm x 30 cm . 9559323024

Colombo Geological Survey & Mines Bureau . xi, 138p. 24cm x 17cm . 9559323040

[Department of mineralogy (Geological survey of Ceylon)] 1959 . ix,12-75p. 24cm x 17cm.