IMCDb.org: 1994 Piaggio Porter in "Family Matters, 1989-1998"
Michael Porter's Competitive Strategy Theory (Porter, M. E. 1998)... | Download Scientific Diagram
Competitive Advantage of Nations by Michael E. Porter (1998-06-01): Amazon.com: Books
Competitive Strategy: Techniques for Analyzing Industries and Competitors by Michael E. Porter (1998-06-01): Michael E. Porter: 0352227901982: Amazon.com: Books
PIAGGIO PORTER II 1998-2008 code 0601110 | I..S.A.M. S.p.A.