BRIEN , D. O. (1994). CADBURY BOURNVITA'S BOOK OF KNOWLEDGE 2.
Lua i Stíl Chicago (17ú heag.)BRIEN , DEREK O. CADBURY BOURNVITA'S BOOK OF KNOWLEDGE 2. 1994.
Lua MLA (9ú heag.)BRIEN , DEREK O. CADBURY BOURNVITA'S BOOK OF KNOWLEDGE 2. 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.