Timmons, T. (1973). Chains of the spirit: A manual of liberation. Canon.
Lua i Stíl Chicago (17ú heag.)Timmons, Tim. Chains of the Spirit: A Manual of Liberation. Washington: Canon, 1973.
Lua MLA (9ú heag.)Timmons, Tim. Chains of the Spirit: A Manual of Liberation. Canon, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.