Xia, G.; Ding, Y. (1984). Early Permian fusulinids and corals in Deyanqimiao district, Sonid Youqi of Nei Mongol Ziziqu. 中国地质科学院天津地质矿产研究所文集 - Bulletin of the Tianjin Institute of Geology and Mineral Resources. 8: 143-160.
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Xia, G.; Ding, Y.
1984
Early Permian fusulinids and corals in Deyanqimiao district, Sonid Youqi of Nei Mongol Ziziqu
中国地质科学院天津地质矿产研究所文集 - Bulletin of the Tianjin Institute of Geology and Mineral Resources