Cita APA (7a ed.)

Harrigan, J., & Zakrajsek, E. (2000). Factor supplies and specialization in the world economy. National Bureau of Economic Research.

Cita Chicago Style (17a ed.)

Harrigan, James, y Egon Zakrajsek. Factor Supplies and Specialization in the World Economy. Cambridge, MA: National Bureau of Economic Research, 2000.

Cita MLA (9a ed.)

Harrigan, James, y Egon Zakrajsek. Factor Supplies and Specialization in the World Economy. National Bureau of Economic Research, 2000.