Guo, F.; Yu, W.; Pan, H.-Z. (1982). Gastropoda. In: Xi'an Institute of Geology and Mineral Resources (Ed.) Paleontological Atlas of Northwest China. Shaanxi Gansu Ningxia Volume. Part III Mesozoic and Cenozoic. Geological Publishing House, Beijing, pp. 28-52.
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Guo, F.; Yu, W.; Pan, H.-Z.
1982
Gastropoda
In: Xi'an Institute of Geology and Mineral Resources (Ed.) Paleontological Atlas of Northwest China. Shaanxi Gansu Ningxia Volume. Part III Mesozoic and Cenozoic. Geological Publishing House, Beijing, pp. 28-52