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Boletín de la Sociedad Española de Historia Natural t.20 (1920)

Parts

  1. By: Cabrera, Angel
    Type: Article
    In: Boletín de la Sociedad Española de Historia Natural
    Volume: 20
    Date: 1920
    Page Range: 106--108
    Publication info: Madrid, Estab. tip. de Fortenet, 1901-1937
  2. By: Arias, J.
    Type: Article
    In: Boletín de la Sociedad Española de Historia Natural
    Volume: 20
    Date: 1920
    Page Range: 191--193
    Publication info: Madrid, Estab. tip. de Fortenet, 1901-1937