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Thompson, F. G. & Upatham, S. (1997). Vertiginid land snails from Thailand (Gastropoda, Pulmonata, Pupilloidea). Bulletin of the Florida Museum of Natural History. 39(7): 221-245.
Thompson, F. G. & Upatham, S. (1997). Vertiginid land snails from Thailand (Gastropoda, Pulmonata, Pupilloidea). Bulletin of the Florida Museum of Natural History. 39(7): 221-245.