Alles, Alfred. Exhibitions: universal marketing tools. - New York Wiley [1973] - 260 p. 25 cm. - Cassell/Associated Business Programmes marketing library . "A Halsted Press book." ISBN: 0470023325 LCCN: 73001796 Subjects--Topical Terms: ExhibitionsMarketing LC Class. No.: T396 / .A38 Dewey Class. No.: 658.8/2