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  1. Apparatus for research on animal ultrasonic signals /
    By: Simmons, James A. - Royal Ontario Museum.
    Publication info: Toronto :Royal Ontario Museum,1979.
    Contributed by: Royal Ontario Museum (archive.org)
    Subjects: Animal sounds  Equipment and supplies  Sound  Ultrasonics in biology  
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  2. Mating calls of some frogs from Thailand [by] W. Ronald Heyer.
    By: Heyer, W. Ronald.
    Publication info: [Chicago]Field Museum of Natural History,1971.
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Animal sounds  Courtship of animals  Frogs  Thailand  
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