MCKENZIE RICHARD B. (1997). PARADOX OF PROGRESS. OXFORD UNIVERSITY PRESS.
Lua i Stíl Chicago (17ú heag.)MCKENZIE RICHARD B. PARADOX OF PROGRESS. NEW YORK: OXFORD UNIVERSITY PRESS, 1997.
Lua MLA (9ú heag.)MCKENZIE RICHARD B. PARADOX OF PROGRESS. OXFORD UNIVERSITY PRESS, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.