CAMPBELL A. (1999). COLLAORATIVE ENTERPRISE. PERSEUS PUBLICATIONS.
Lua i Stíl Chicago (17ú heag.)CAMPBELL A. COLLAORATIVE ENTERPRISE. MASSACHUETTS: PERSEUS PUBLICATIONS, 1999.
Lua MLA (9ú heag.)CAMPBELL A. COLLAORATIVE ENTERPRISE. PERSEUS PUBLICATIONS, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.