David Loader. (2002). Controls, Procedures and Risk. ELSEVIER.
Lua i Stíl Chicago (17ú heag.)David Loader. Controls, Procedures and Risk. ELSEVIER, 2002.
Lua MLA (8ú heag.)David Loader. Controls, Procedures and Risk. ELSEVIER, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.