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From the Genera Aratinga Spix, Deroptyus Wagler, Leptosittaca Berlepsch and Stolzmann, Ognorhynchus Bonaparte, Pionites Heine, and Pyrrhura Bonaparte, and Conclusions to the Study

Warren T. Atyeo

出版	Field Museum of Natural History, 1990
URL	http://books.google.com.hk/books?id=uTW8PgAACAAJ&hl=&source=gbs_api