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  1. By: Forel, F. A. (François Alphonse),
    Publication info: Würzburg, A. Stuber, 1866
    Holding Institution: Smithsonian Libraries and Archives
  2. By: Forel, F. A. (François Alphonse),
    Publication info: Bâle, En commission chez H. Georg, 1885
    Holding Institution: Smithsonian Libraries and Archives
  3. By: Forel, F. A. (François Alphonse),
    Edition: 2e éd. rev. et augm
    Publication info: Bâle, H. Georg, 1886
    Holding Institution: Musée cantonal de zoologie, Lausanne
  4. By: Forel, F. A. (François Alphonse),
    Publication info: Lausanne, F. Rouge, 1892-1904
    Holding Institution: Multiple institutions
  1. By: Forel, F. A. (François Alphonse),
    Type: Article
    In: The Annals and magazine of natural history; zoology, botany, and geology
    Volume: 10
    Series: 5
    Date: 1882
    Page Range: 320--325
    Publication Info: London Taylor and Francis, Ltd