Author: Kobayashi, T., 1960.:
Title: The Cambro-Ordovician formations and faunas of South Korea. Part VI, Palaeontology V.
Description: Jour. Fac. Sci. Univ. Tokyo, Sect. II, 12(2): pp. 217-275,[7], 81 photos of trilobites on 3 pls., many drawings in 10 figs., refs., index. Plain new wrs. - Exclusively on trilobites, Gakoku Formation.

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