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  1. Ptitsy gansuiskago puteshestviia G. N. Potanina 1884-1887 : materialy po ornitologii Kitaia, glavnym obrazom iuzhnoi chasti provintsii Gansy / M. Berezovskago i V. Bianki = Aves expeditionis Potanini per provinciam Gan-su et confinia 1884-1887 / auctoribus M. Berezowski & V. Bianchi.
    By: Berezovskii, Mikhail Mikhailovich. - Bianchi, Valentin Lvovich, - Potanin, G. N.
    Publication info: Sanktpeterburg :Tip. I. Akademii nauk,1891.
    Contributed by: Smithsonian Libraries
    BHL Collections: Smithsonian Institution Libraries
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