Dignen, Bob Fifty ways to improve your presentation skills in English / Bob Dignen - Oxford : Summertown, c2007. - 145p. ; 25 cm. - The Cambridge applied linguistics series . ISBN: 9781902741864 LCCN: Subjects--Topical Terms: English languageTextbooks for foreign speakersEnglish language LC Class. No.: PE1128 / .D473 2007 Dewey Class. No.: 428.24 / D575f