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Business typewriting : a self-teaching course, based on 20th century typewriting / by D.D. Lessenberry
(War Department education manual ; EM 726)

データ種別	図書
出版情報	[Cincinnati] : Published for the United States Armed Forces Institute by South-Western Pub. , c1944
本文言語	英語
大きさ	79 p. ; 22 cm