Industrial clays of Sri Lanka Geology, mineralogy and appraisal for ceramics and others industrial
J.W. Hearth
Industrial clays of Sri Lanka Geology, mineralogy and appraisal for ceramics and others industrial - Colombo
Geological Survey Dept. 1973 - 113, ref
549.5493 / HER
Industrial clays of Sri Lanka Geology, mineralogy and appraisal for ceramics and others industrial - Colombo
Geological Survey Dept. 1973 - 113, ref
549.5493 / HER
