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  1. An investigation of evolution in chrysomelid beetles of the genus Leptinotarsa.
    By: Tower, William Lawrence,
    Publication info: Washington, D.C.,Carnegie Institution of Washington,1906.
    Holding Institution: Smithsonian Libraries
    Subjects: Colorado potato beetle  Leptinotarsa  Variation (Biology)  
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  2. The mechanism of evolution in leptinotarsa,
    By: Tower, William Lawrence, - Breitenbecher, Joseph Kumler,
    Publication info: Washington,Carnegie Institution of Washington,1918.
    Holding Institution: Multiple institutions
    Subjects: Leptinotarsa  
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