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  1. Copepoda. I. Calanoida amphascandria /
    By: With, Carl. - Hansen, H. J. (Hans Jacob),
    Publication info: Copenhagen :Printed by Bianco Luno,1915.
    Contributed by: Smithsonian Libraries
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  2. Crustacea copepoda. II. Copepoda parasita and hemiparasita /
    By: Hansen, H. J. (Hans Jacob), - With, Carl.
    Publication info: Copenhagen :Printed by Bianco Luno,1923.
    Contributed by: Smithsonian Libraries
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