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  1. By: Threlkeld, John L.
    Type: Article
    In: Lasca leaves
    Volume: 11
    Issue: Spring 1961
    Date: 1961
    Page Range: 32-37
    Publication Info: Arcadia, Calif, California Arboretum Foundation, 1950-1976
    Subjects: Roses -- History  Roses -- Los Angeles County (Calif.)  
  2. By: Threlkeld, John L.
    Type: Article
    In: Lasca leaves
    Volume: 11
    Issue: Summer 1961
    Date: 1961
    Page Range: 50-59
    Publication Info: Arcadia, Calif, California Arboretum Foundation, 1950-1976
    Subjects: Rose gardens -- California  Roses -- Diseases and pests  Roses -- History  Roses -- Pruning