Cita APA (7a ed.)

Siggel, E. (2006). International competitiveness and comparative advantage: A survey and a proposal for measurement. [s.n.].

Cita Chicago Style (17a ed.)

Siggel, Eckhard. International Competitiveness and Comparative Advantage: A Survey and a Proposal for Measurement. [S.l.]: [s.n.], 2006.

Cita MLA (9a ed.)

Siggel, Eckhard. International Competitiveness and Comparative Advantage: A Survey and a Proposal for Measurement. [s.n.], 2006.