Kelly, R. (1959). English exercises for secretaries. G.G.Harrap & Co.
Lua i Stíl Chicago (17ú heag.)Kelly, R. English Exercises for Secretaries. London: G.G.Harrap & Co, 1959.
Lua MLA (9ú heag.)Kelly, R. English Exercises for Secretaries. G.G.Harrap & Co, 1959.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.