Söderbom, M., & Teal, F. (2003). Openness and human capital as sources of productivity growth: An empirical investigation. University of Oxford.
Lua i Stíl Chicago (17ú heag.)Söderbom, M., agus F. Teal. Openness and Human Capital as Sources of Productivity Growth: An Empirical Investigation. University of Oxford, 2003.
Lua MLA (9ú heag.)Söderbom, M., agus F. Teal. Openness and Human Capital as Sources of Productivity Growth: An Empirical Investigation. University of Oxford, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.