Sexton, R. D. (1989). Travelling people in the United Kingdom.
Lua i Stíl Chicago (17ú heag.)Sexton, R. D. Travelling People in the United Kingdom. 1989.
Lua MLA (8ú heag.)Sexton, R. D. Travelling People in the United Kingdom. 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.