Não informado. (1969). Journal of Applied Systems Analysis. University of Lancaster.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of Applied Systems Analysis. Lancaster, Inglaterra: University of Lancaster, 1969.
Lua MLA (8ú heag.)Não informado. Journal of Applied Systems Analysis. University of Lancaster, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.