Gibson, R. (1996). Rethinking the future. Nicholas Brealey.
Lua i Stíl Chicago (17ú heag.)Gibson, Rowan. Rethinking the Future. London: Nicholas Brealey, 1996.
Lua MLA (9ú heag.)Gibson, Rowan. Rethinking the Future. Nicholas Brealey, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.