Cheong, C. H. (1974). Stratigraphy and paleontology of the Samcheog Coalfield, Gangweon-Do, Korea (2). Journal of the National Academy of Sciences, Republic of Korea, Natural sciences series. 13: 61-104.
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Cheong, C. H.
1974
Stratigraphy and paleontology of the Samcheog Coalfield, Gangweon-Do, Korea (2)
Journal of the National Academy of Sciences, Republic of Korea, Natural sciences series