Lunsford, A. A. (1994). The presence of others. St. Martin Press.
Lua i Stíl Chicago (17ú heag.)Lunsford, Andrea A. The Presence of Others. New York: St. Martin Press, 1994.
Lua MLA (9ú heag.)Lunsford, Andrea A. The Presence of Others. St. Martin Press, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.