Modèle:Ris1915sierraleone
De Odonates du Monde
Ris F. 1915 - New dragonflies (Odonata) of the subfamily Libellulinae from Sierra Leone. - Annals Magazine Natural History, series 8, 15 : 213-223.
Ris F. 1915 - New dragonflies (Odonata) of the subfamily Libellulinae from Sierra Leone. - Annals Magazine Natural History, series 8, 15 : 213-223.
