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  1. Avium species novae, quas in itinere annis MDCCCXVII-MDCCCXX per Brasiliam /
    By: Spix, Johann Baptist von, - Martius, Karl Friedrich Philipp von, - Schmidt, Matthias,
    Publication info: Monachii :Impensis editores,1838-1839.
    Contributed by: Smithsonian Libraries
    BHL Collections: Smithsonian Libraries
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  2. Avium species novae, quas in itinere per Brasiliam annis MDCCCXVII-MDCCCXX /
    By: Spix, Johann Baptist von, - Kuhles, Alfred, - Schmidt, Matthias, - Tucker, Marcia Brady,
    Publication info: Monachii :Typis Franc. Seraph. Hübschmanni,1824-1825.
    Contributed by: Smithsonian Libraries
    BHL Collections: Smithsonian Libraries
    View Book