Bequaert, J.; Clench, W. J. (1934). Studies of African land and fresh-water mollusks. 3, West African Achatinae related to Achatina balteata Reeve. American Museum novitates. 705: 1-16.
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Bequaert, J.; Clench, W. J.
1934
Studies of African land and fresh-water mollusks. 3, West African Achatinae related to Achatina balteata Reeve