Huang, B.-Y; Guo, S.-Y. (1982). Early Pleistocene fresh-water lamellibranch fauna from Nihewan, Hebei. Journal of Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences. 5: 231-252.
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Huang, B.-Y; Guo, S.-Y.
1982
Early Pleistocene fresh-water lamellibranch fauna from Nihewan, Hebei
Journal of Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences