Davis, D. R., & Weinstein, D. E. (1998). market access, economic geography and comparative advantage: An empirical assessment. National Bureau of Economic Research.
Lua i Stíl Chicago (17ú heag.)Davis, Donald R., agus David E. Weinstein. Market Access, Economic Geography and Comparative Advantage: An Empirical Assessment. Cambridge: National Bureau of Economic Research, 1998.
Lua MLA (9ú heag.)Davis, Donald R., agus David E. Weinstein. Market Access, Economic Geography and Comparative Advantage: An Empirical Assessment. National Bureau of Economic Research, 1998.
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