| Citation | Baensch, H.A. and R. Riehl, 1991, Aquarien atlas. Bd. 3.. Melle: Mergus, Verlag für Natur-und Heimtierkunde, Germany. 1104 p. |
| Ref. | 2059 Baensch, H.A. and R. Riehl, 1991 |
| Page | 860 |
| Named Used as Valid | Pseudotropheus williamsi |
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