| Citation | El Zarka, S., 1961. Tilapia fisheries investigation in Egyptian lakes. I. Annulus formation on the scales of the cichlid fish Tilapia zillii (Gerv.) and its validity, in age and growth studies. Notes Mem. UAR (South. Reg.) Minist. Agric. Hydrobiol. Dep. 62:1-18. |
| DOI | http://dx.doi.org/ |
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| Ref. No. | 365 |
| Language | English |
| Usage | used in part |
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