Travers, R., & Welsh, J. (2011). Confronting crisis.
Lua i Stíl Chicago (17ú heag.)Travers, R., agus J. Welsh. Confronting Crisis. 2011.
Lua MLA (9ú heag.)Travers, R., agus J. Welsh. Confronting Crisis. 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.