Maassen, W. J. M. & Gittenberger, E. (2007). Three new clausiliid land snails from Tonkin, northern Vietnam (Gastropoda: Pulmonata: Clausiliidae). Zoologische Mededelingen. 81(1): 175-186.
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Maassen, W. J. M. & Gittenberger, E.
2007
Three new clausiliid land snails from Tonkin, northern Vietnam (Gastropoda: Pulmonata: Clausiliidae)