Kesteven R. (1966). Key to Typewriting for Intermediate and Advanced Examinations. Cassell.
Dyfyniad Arddull ChicagoKesteven R. Key to Typewriting for Intermediate and Advanced Examinations. London: Cassell, 1966.
Dyfyniad MLAKesteven R. Key to Typewriting for Intermediate and Advanced Examinations. Cassell, 1966.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.