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21 |
The birds of Timor and Sumba Mayr, Ernst. - New York, NY : American Museum of Natural History, 1944
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22 |
New species of birds described from 1938 to 1941 Zimmer, John T.. - [S.l.] : [s.n.], [1943]
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23 |
Notes on the Polynesian species of Aplonis Mayr, Ernst. - New York : American Museum of Natural History, 1942
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24 |
Systematics and the origin of species Mayr, Ernst. - New York : Columbia Univ. Pr., 1942
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25 |
Geographical variation in Demigretta sacra (Gmelin) Mayr, Ernst. - New York : American Museum of Natural History, 1941
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26 |
List of New Guinea birds Mayr, Ernst. - New York : American Museum of Natural History, 1941
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27 |
Notes on the genera Halcyon, Turdus and Eurostopodus Mayr, Ernst. - New York : American Museum of Natural History, 1941
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28 |
Notes on the genus Lalage boie Mayr, Ernst. - New York : American Museum of Natural History, 1941
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29 |
On the birds of the Loyalty Islands Mayr, Ernst. - New York : American Museum of Natural History, 1940
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30 |
On a collection from Erromanga, New Hebrides Mayr, Ernst. - New York : American Museum of Natural History, 1938
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