Não informado. (1990). Personnel Training and Education. Library Association, Personnel Training and Education Group.
Lua i Stíl Chicago (17ú heag.)Não informado. Personnel Training and Education. London: Library Association, Personnel Training and Education Group, 1990.
Lua MLA (8ú heag.)Não informado. Personnel Training and Education. Library Association, Personnel Training and Education Group, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.