Herath, J.W.
Industrial clays of Sri Lanka : geology, mineralogy and appraisal for ceramics and other industries - Colombo Gelogical Survey Department 1973 - xii,113p. : charts, ill., maps, tables , Bibliography included - Geological Survey Department economic bulletin ; no.1 .
CLAY PRODUCTS - Sri Lanka
CERAMIC PRODUCTS - Sri Lanka
666.32(548.7) / H4
Industrial clays of Sri Lanka : geology, mineralogy and appraisal for ceramics and other industries - Colombo Gelogical Survey Department 1973 - xii,113p. : charts, ill., maps, tables , Bibliography included - Geological Survey Department economic bulletin ; no.1 .
CLAY PRODUCTS - Sri Lanka
CERAMIC PRODUCTS - Sri Lanka
666.32(548.7) / H4