Duffy, Scott Launch ! : the critical 90 days from idea to market / Scott Duffy - London Piatkus 2014 - 218 p. ISBN: 9780349404004 Subjects--Topical Terms: Success in businessEntrepreneurshipᅠNew productsᅠNew business enterprisesᅠ Dewey Class. No.: 658.11 DUF-S