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	1.	No cover image available Rocks and minerals by Kumaragamage, D Thenabadu, M.W Series: Science Education Series ; No.14 Language: Publication details: NARESA Colombo ; 1986 Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1). Add to cart (remove)
	2.	No cover image available Limestone resources of Sri Lanka by Abeysinghe, P.B Series: Science Education Series ; No.23 Language: Publication details: NARESA Colombo Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1). Add to cart (remove)
	3.	No cover image available The graphite industry in Sri Lanka by Wijayananda, N.P Series: Science Education Series ; No.24 Language: Publication details: NARESA Colombo ; 1987 Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1). Add to cart (remove)

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