He, Yan [also as Ho Yen], Lan-Ying Hu, and Ke-Liang Wan. (1965). Quaternary Foraminifera of the eastern part of the Tzeyang and Kitai Provinces. Mem Inst Paleont Nanking. 4: 51-162 in Chinese with Russian summary.
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He, Yan [also as Ho Yen], Lan-Ying Hu, and Ke-Liang Wan
1965
Quaternary Foraminifera of the eastern part of the Tzeyang and Kitai Provinces