Sarathchandra, W. Dharmaratne, P.G.R.
Geological studies of the source rock of gem minerals in the area around Hatharabage - Moratuwa University of Moratuwa 1988
549(548.7) / S3
Geological studies of the source rock of gem minerals in the area around Hatharabage - Moratuwa University of Moratuwa 1988
549(548.7) / S3