Wang, K.-L.; Sun, X.-F. (1973). Carboniferous and Permian foraminifera of the Chinling Range and its geologic significance. Acta Geologica Sinica. 2: 137-178 (in Chinese with English abstract).
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Wang, K.-L.; Sun, X.-F.
1973
Carboniferous and Permian foraminifera of the Chinling Range and its geologic significance