Ding, P. Z.; Jin, T. A.; Sun, X. F. (1987). An Excursion Guide to Permian Geology of Xikou Area, Zhen'an County, Shaanxi. Bulletin of the Xi'an Institute of Geology and Mineral Resources, CAGS. 15: 113-138.
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Ding, P. Z.; Jin, T. A.; Sun, X. F.
1987
An Excursion Guide to Permian Geology of Xikou Area, Zhen'an County, Shaanxi
Bulletin of the Xi’an Institute of Geology and Mineral Resources, CAGS