| Referens | Williams, A.J., W.K. Steele, J. Cooper and R.J.M. Crawford 1990 Distribution, population size and conservation of Hartlaub’s Gull Larus hartlaubii. Ostrich 61:66-76. |
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| Ref. No. | 6698 |
| Språk | English |
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| Sök denna referens i | Google Scholar | Scirus | Species used from this reference |
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