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  1. The Coccidae of California : a descriptive list of the different scale insects found in and reported from California /
    By: Carnes, Edward K. - California. State Commission of Horticulture.
    Publication info: Sacramento :[State Horticultural Commission],1906.
    Holding Institution: University of California Libraries (
    Subjects: California  Coccidae  Insect pests  Scale-insects  
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  2. The cottony maple scale in Illinois /
    By: Forbes, Stephen Alfred,
    Publication info: Urbana, [Ill.] :University of Illinois Agricultural Experiment Station,1907.
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: Diseases and pests  Illinois  Scale-insects  Shrubs  Trees  
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  3. The San José and other scale insects prepared for the use of fruit growers and scale inspectors /
    By: Lochhead, William, - Ontario. Dept. of Agriculture.
    Publication info: [Toronto? :s.n.],1900
    Holding Institution: (
    Subjects: Diseases and pests  Fruit  Scale-insects  
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