Organisation for Economic Co-operation and Development. (1997). Regional competitiveness and skills. Organisation for Economic Co-operation and Development.
Cita Chicago (17th ed.)Organisation for Economic Co-operation and Development. Regional Competitiveness and Skills. Paris, France: Organisation for Economic Co-operation and Development, 1997.
Cita MLA (9th ed.)Organisation for Economic Co-operation and Development. Regional Competitiveness and Skills. Organisation for Economic Co-operation and Development, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.