410 2 _
‡a
Geological and Mineral Institute of Korea
410 2 _
‡a
Korea
‡g
Republic
‡b
Geological and Mineral Institute of Korea
410 2 _
‡a
Korea
‡g
Republic
‡b
Ministry of Commerce and Industry
‡b
Industrial Advancement Administration
‡b
Geological and Mineral Institute of Korea