| Citation | Haaf, T. and M. Schmid, 1984. An early stage of ZW/ZZ sex chromosome differentiation in Poecilia sphenops var. melanistica (Poeciliidae, Cyprinodontiformes). Chromosoma. 89(1):37-41. Berlin. |
| DOI | http://dx.doi.org/ |
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| Ref. No. | 30070 |
| Language | English |
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