Cita APA (7th ed.)

Davis, D. R., & Weinstein, D. E. (1998). market access, economic geography and comparative advantage: An empirical assessment. National Bureau of Economic Research.

Cita Chicago (17th ed.)

Davis, Donald R., i David E. Weinstein. Market Access, Economic Geography and Comparative Advantage: An Empirical Assessment. Cambridge: National Bureau of Economic Research, 1998.

Cita MLA (9th ed.)

Davis, Donald R., i David E. Weinstein. Market Access, Economic Geography and Comparative Advantage: An Empirical Assessment. National Bureau of Economic Research, 1998.