Ehrenborg, Jöns Powerful presentations : simple ideas for making a real impact Jöns Ehrenborg and John Mattock - London : Kogan Page, 1997 - 107 pages : illustrations ; 22 cm ISBN: 8175541180 Subjects--Topical Terms: Business presentations. --Public speaking. Dewey Class. No.: 658.312404 / EHP 2000