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  1. Hydrographical and biological investigations in Norwegian fiords / by O. Nordgaard. The protist plankton and the diatoms in bottom samples / by E. Jørgensen. With 21 plates and 10 figures in the text.
    By: Nordgaard, O. - Jørgensen, Eugen Honoratus, - Bergens Museum.
    Publication info: Bergen,J. Grieg,1905.
    Contributed by: MBLWHOI Library
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  2. Polyzoa.
    By: Nordgaard, O.
    Publication info: Christiania,Grøndahl & søns bogtrykkeri,1900.
    Contributed by: Smithsonian Libraries
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