Kelly, R. (1959). English exercises for secretaries. G.G.Harrap & Co.
Chicago-čujuhus (17. p.)Kelly, R. English Exercises for Secretaries. London: G.G.Harrap & Co, 1959.
MLA-čujuhus (9. p.)Kelly, R. English Exercises for Secretaries. G.G.Harrap & Co, 1959.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.