Cita APA (7a ed.)

Ketels, C. H. M. (2006). Michael Porter's competitiveness framework: Recent learnings and new research priorities. [s.n.].

Cita Chicago Style (17a ed.)

Ketels, Christian H. M. Michael Porter's Competitiveness Framework: Recent Learnings and New Research Priorities. [S.l.]: [s.n.], 2006.

Cita MLA (9a ed.)

Ketels, Christian H. M. Michael Porter's Competitiveness Framework: Recent Learnings and New Research Priorities. [s.n.], 2006.