Bono, E. D. (1986). Opportunities. Penguin Books.
Lua i Stíl Chicago (17ú heag.)Bono, Edward De. Opportunities. London: Penguin Books, 1986.
Lua MLA (9ú heag.)Bono, Edward De. Opportunities. Penguin Books, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.