Zeng, D.-M.; Hu, J.-M. (1982). Operculum of Gastropoda. In: Geological Bureau of Hunan (Ed.) The Palaeontological Atlas of Hunan. Geological Memoirs, Series 2. 1: 255-271.
353596
Zeng, D.-M.; Hu, J.-M.
1982
Operculum of Gastropoda. In: Geological Bureau of Hunan (Ed.) The Palaeontological Atlas of Hunan