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  1. By: Robertson, R
    Type: Article
    In: The Bulletin of zoological nomenclature
    Volume: 18
    Date: 1961
    Page Range: 301--302
    Publication Info: London International Trust for Zoological Nomenclature
  2. By: Robertson, R
    Type: Article
    In: The veliger
    Volume: 14
    Date: 1971
    Page Range: 1--12
    Publication Info: Berkeley, CA, California Malacozoological Society,
  3. By: Robertson, R
    Type: Article
    In: The Bulletin of zoological nomenclature
    Volume: 19
    Date: 1962
    Page Range: 332--336
    Publication Info: London International Trust for Zoological Nomenclature