Heatherley, J. L. (1971). Unworld people. Harper & Row.
Lua i Stíl Chicago (17ú heag.)Heatherley, Joyce L. Unworld People. Cambridge: Harper & Row, 1971.
Lua MLA (9ú heag.)Heatherley, Joyce L. Unworld People. Harper & Row, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.