Section: Articles Title: Why you need a new media "Ringmaster" / Patrick SpennerAuthor: Spenner, Patrick Related records: En: Harvard business review. - Boston : Impact Media Comercial S.A., 1988-. - 01/12/2010 Tomo 88 Número 12 - 2010 Other categories: 92 Rights: In Copyright (InC) Referencias externas: earth MÁS INFORMACIÓN See issue detail