Παραπομπή APA

Barker, T., Kohler, J., & Kohler, J. (1998). International competitiveness and environmental policies. Cheltenham, U.K.: Edward Elgar.

Παραπομπή Chicago Style

Barker, Terry, Jonathan Kohler, and Jonathan Kohler. International Competitiveness and Environmental Policies. Cheltenham, U.K.: Edward Elgar, 1998.

Παραπομπή MLA

Barker, Terry, Jonathan Kohler, and Jonathan Kohler. International Competitiveness and Environmental Policies. Cheltenham, U.K.: Edward Elgar, 1998.

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