Bergin, Francis J. Successful presentations / Francis J. Bergin. - Hemel Hempstead : Prentice-Hall, 1995. - 94p ; 22 cm. Published in association with the Institute of Directors. ISBN: 0134341430 £14.95 (Sept.) Nat. Bib. No.: GB95S1729 bnb Dewey Class. No.: 808.51