Ehrenborg, Jons Powerfull presentations : simple ideas for making a real impact Jons Ehrenborg - 2nd ed. - New Dehli : Kogan Page India Pvt. Ltd., c2000. - 105 p. : ill.; 22 cm. ISBN: 8175541180 Subjects--Topical Terms: --General Dewey Class. No.: 153.25 EHR