Walsh, J. P. Migration and refuge. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Walsh, John Patrick. Migration and Refuge. Oxford University Press.
Lua MLA (8ú heag.)Walsh, John Patrick. Migration and Refuge. Oxford University Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.