Carretto, C., Hancock, R. M., & Illich, I. (1972). Letters from the desert. Orbis Books.
Lua i Stíl Chicago (17ú heag.)Carretto, Carlo, Rose Mary Hancock, agus Ivan Illich. Letters from the Desert. Maryknoll: Orbis Books, 1972.
Lua MLA (9ú heag.)Carretto, Carlo, et al. Letters from the Desert. Orbis Books, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.