Não informado. (1920). Journal of the Institute of Personnel Management. Institute of Personnel Management.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of the Institute of Personnel Management. London: Institute of Personnel Management, 1920.
Lua MLA (8ú heag.)Não informado. Journal of the Institute of Personnel Management. Institute of Personnel Management, 1920.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.