Ryckmans J n.d.
- Full Citation
- Ryckmans, J. Aperçu provisoire sur des inscriptions "thamoudéennes" relevées en Arabie centrale. Pages 91-92 in D. Sinor (ed.), Proceedings of the 23rd. International Congress of Orientalists, Cambridge, 21st-28th August 1954. London: Royal Asiatic Society, n.d..