Hawton, K. (2006). Richard ("Dick") John Ronald Ropner - Obituary.
Lua i Stíl Chicago (17ú heag.)Hawton, K. Richard ("Dick") John Ronald Ropner - Obituary. 2006.
Lua MLA (9ú heag.)Hawton, K. Richard ("Dick") John Ronald Ropner - Obituary. 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.