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  1. Type: Article
    In: Newsletter Arboreta and Botanic Gardens
    Volume: 1973:Dec.10
    Date: 1973
    Page Range: 2
    Publication Info: Arcadia, County of Los Angeles, Public Services Division,
    Subjects: Energy conservation -- California  Ito, Roy  
  2. Type: Article
    In: Lasca leaves
    Volume: 24
    Date: 1974
    Page Range: 9
    Publication Info: Arcadia, Calif, California Arboretum Foundation, 1950-1976
    Subjects: Ito, Roy  
  3. Type: Article
    In: Newsletter Arboreta and Botanic Gardens
    Volume: 1974:Feb.10
    Date: 1974
    Page Range: 2
    Publication Info: Arcadia, County of Los Angeles, Public Services Division,
    Subjects: Acuna, David  Ito, Roy  Zorich, Dan