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  1. By: Hanson, George P.
    Type: Article
    In: Lasca leaves
    Volume: 20
    Date: 1970
    Page Range: 78-81, 92
    Publication Info: Arcadia, Calif, California Arboretum Foundation, 1950-1976
  2. By: Hanson, George P. - Thorne, Linda
    Type: Article
    In: Lasca leaves
    Volume: 20
    Date: 1970
    Page Range: 35-36
    Publication Info: Arcadia, Calif, California Arboretum Foundation, 1950-1976
  3. By: Hanson, George P.
    Type: Article
    In: Lasca leaves
    Volume: 22
    Date: 1972
    Page Range: 86-89
    Publication Info: Arcadia, Calif, California Arboretum Foundation, 1950-1976
  4. By: Hanson, George P. - Addis, Daniel H. - Thorne, Linda
    Type: Article
    In: Lasca leaves
    Volume: 24
    Date: 1974
    Page Range: 117-119
    Publication Info: Arcadia, Calif, California Arboretum Foundation, 1950-1976
  5. By: Hanson, George P.
    Type: Article
    In: Lasca leaves
    Volume: 26
    Date: 1976
    Page Range: 8-10
    Publication Info: Arcadia, Calif, California Arboretum Foundation, 1950-1976
  6. By: Hanson, George P. - Thorne, Linda
    Type: Article
    In: Lasca leaves
    Volume: 22
    Date: 1972
    Page Range: 60-65
    Publication Info: Arcadia, Calif, California Arboretum Foundation, 1950-1976
  7. By: Hanson, George P. - Thorne, Linda - Jativa, Carlos D.
    Type: Article
    In: Lasca leaves
    Volume: 20
    Date: 1970
    Page Range: 6-7
    Publication Info: Arcadia, Calif, California Arboretum Foundation, 1950-1976
  8. By: Jativa, Carlos D. - Hanson, George P.
    Type: Article
    In: Lasca leaves
    Volume: 24
    Date: 1974
    Page Range: 13-17
    Publication Info: Arcadia, Calif, California Arboretum Foundation, 1950-1976