https://catalogue-scientifique.canada.ca/record=1033901~S6*frc
Rechercher International Union for the Protection of Nature; Rechercher ICUN; Rechercher International Union for Conservation of Nature and Natural Resources
International Union for the Conservation of Nature and Natural Resources, ISSN : 0074-9273
Many numbers consist of proceedings and papers of various symposia, and have distinctive titles.
Périodique (revue)