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  1. By: Johnson, Norman F. - Masner, Lubomir
    Publication info: New York, NY American Museum of Natural History c2004
    Holding Institution: American Museum of Natural History Library
    Subjects: Classification  Parasites  parasitoids  Thoron  Water scorpions
  2. By: FalleĢn, Carl Fredrik,
    Publication info: Lundae, litteris Berlingianis, 1814
    Holding Institution: Cornell University Library
    Subjects: Water scorpions