Παραπομπή APA

Johansson, B., & Karlsson, C. S. (2002). Regional policies and comparative advantage. Edward Elgar.

Παραπομπή Chicago Style

Johansson, Borje, και Charlie Stough Karlsson. Regional Policies and Comparative Advantage. Cheltenham UK: Edward Elgar, 2002.

Παραπομπή MLA

Johansson, Borje, και Charlie Stough Karlsson. Regional Policies and Comparative Advantage. Edward Elgar, 2002.