Modèle:Ris1921
De Odonates du Monde
Ris F. 1921 - The Odonata or Dragonflies of South Africa. - Annals South African Museum, 18 (3) : 245-452 + pl..
Ris F. 1921 - The Odonata or Dragonflies of South Africa. - Annals South African Museum, 18 (3) : 245-452 + pl..
