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  1. By: Ryckman, R E - Arakawa, Ken Y.
    Type: Article
    In: The Pan-Pacific entomologist
    Volume: 28
    Date: 1952
    Page Range: 105--106
    Publication Info: San Francisco, Pacific Coast Entomological Society,
  2. By: Ryckman, R E
    Type: Article
    In: The Pan-Pacific entomologist
    Volume: 27
    Date: 1951
    Page Range: 172
    Publication Info: San Francisco, Pacific Coast Entomological Society,
  3. By: Ryckman, R E
    Type: Article
    In: The Pan-Pacific entomologist
    Volume: 29
    Date: 1953
    Page Range: 155--156
    Publication Info: San Francisco, Pacific Coast Entomological Society,
  4. By: Ryckman, R E - Ames, Charles T.
    Type: Article
    In: The Pan-Pacific entomologist
    Volume: 29
    Date: 1953
    Page Range: 163--164
    Publication Info: San Francisco, Pacific Coast Entomological Society,
  5. By: Ryckman, R E - Deem, B A
    Type: Article
    In: Bulletin of the Brooklyn Entomological Society
    Volume: 48
    Series: new
    Date: 1953
    Page Range: 67--68
    Publication Info: Brooklyn, N.Y, The Society,
  6. By: Ryckman, R E
    Type: Article
    In: The Pan-Pacific entomologist
    Volume: 29
    Date: 1953
    Page Range: 144--146
    Publication Info: San Francisco, Pacific Coast Entomological Society,
  7. By: Ryckman, R E - Arakawa, Ken Y.
    Type: Article
    In: The Pan-Pacific entomologist
    Volume: 28
    Date: 1952
    Page Range: 104--105
    Publication Info: San Francisco, Pacific Coast Entomological Society,
  8. By: Ryckman, R E - Lee, R D
    Type: Article
    In: The Pan-Pacific entomologist
    Volume: 34
    Date: 1958
    Page Range: 35--40
    Publication Info: San Francisco, Pacific Coast Entomological Society,