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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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