PORTER MICHAEL E. (2004). GLOBAL COMPETITIVENESS REPORT 2004-2005. PALGRAVE MACMILLAN.
Cita Chicago (17th ed.)PORTER MICHAEL E. GLOBAL COMPETITIVENESS REPORT 2004-2005. GREAT BRITAIN: PALGRAVE MACMILLAN, 2004.
Cita MLA (9th ed.)PORTER MICHAEL E. GLOBAL COMPETITIVENESS REPORT 2004-2005. PALGRAVE MACMILLAN, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.