Graham, B. (1986). Unto the hills. Word Books.
Lua i Stíl Chicago (17ú heag.)Graham, Billy. Unto the Hills. Waco, Tex.: Word Books, 1986.
Lua MLA (9ú heag.)Graham, Billy. Unto the Hills. Word Books, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.