Template:Bruggen & Van Goethem, 1999

• van Bruggen, A.C. & Van Goethem, J. 1999. Dr. William Adam's iconography of Central and West African Gulella species (Gastropoda Pulmonata: Streptaxidae). Part 3: Nine new species from the D.R. Congo. Bulletin de l'Institut Royal des Sciences Naturelles de Belgique, Biologie 69: 31–45. PDF.  
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