Churchward, J. h. (1964). Typewriting Displays , Tabulations and Manuscripts Intermediate. Sir Issac Pitman and Sons.
Παραπομπή Chicago StyleChurchward, John h. Typewriting Displays , Tabulations and Manuscripts Intermediate. London: Sir Issac Pitman and Sons, 1964.
Παραπομπή MLAChurchward, John h. Typewriting Displays , Tabulations and Manuscripts Intermediate. Sir Issac Pitman and Sons, 1964.
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