BEER M. (2001). BREAKING THE CODE OF CHANGE. BOSTON.
Lua i Stíl Chicago (17ú heag.)BEER M. BREAKING THE CODE OF CHANGE. H B S: BOSTON, 2001.
Lua MLA (9ú heag.)BEER M. BREAKING THE CODE OF CHANGE. BOSTON, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.