Kahn, R. I. (1972). The letter and the spirit. Word Books.
Lua i Stíl Chicago (17ú heag.)Kahn, Robert I. The Letter and the Spirit. Waco, Texas: Word Books, 1972.
Lua MLA (9ú heag.)Kahn, Robert I. The Letter and the Spirit. Word Books, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.