Não informado. (2002). International Journal of Industrial Ergonomics. Editions Elsevier.
Lua i Stíl Chicago (17ú heag.)Não informado. International Journal of Industrial Ergonomics. Amsterdam: Editions Elsevier, 2002.
Lua MLA (8ú heag.)Não informado. International Journal of Industrial Ergonomics. Editions Elsevier, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.