Yen, T.-C. (1948). Notes on land and fresh-water mollusks of Chekiang province, China. Proceedings of the California Academy of Sciences, 4th series. 26: 69-99.
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Yen, T.-C.
1948
Notes on land and fresh-water mollusks of Chekiang province, China
Proceedings of the California Academy of Sciences, 4th series