HAMMOND ALLEN. (1998). WHICH WORLD? SCENARIOS FOR THE 21ST CENTURY. EARTHSCAN.
Lua i Stíl Chicago (17ú heag.)HAMMOND ALLEN. WHICH WORLD? SCENARIOS FOR THE 21ST CENTURY. LONDON: EARTHSCAN, 1998.
Lua MLA (9ú heag.)HAMMOND ALLEN. WHICH WORLD? SCENARIOS FOR THE 21ST CENTURY. EARTHSCAN, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.