YOUNG TREVOR L. (2003). HANDBOOK OF PROJECT MANAGEMENT AND C.D (2ND.). KOGAN PAGE.
Lua i Stíl Chicago (17ú heag.)YOUNG TREVOR L. HANDBOOK OF PROJECT MANAGEMENT AND C.D. 2ND. USA: KOGAN PAGE, 2003.
Lua MLA (9ú heag.)YOUNG TREVOR L. HANDBOOK OF PROJECT MANAGEMENT AND C.D. 2ND. KOGAN PAGE, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.