Cita APA (7a ed.)

Harrigan, J. (2001). Specialization and the volume of trade: Do the data obey the laws? National Bureau of Economic Research.

Cita Chicago Style (17a ed.)

Harrigan, James. Specialization and the Volume of Trade: Do the Data Obey the Laws? Cambridge, MA: National Bureau of Economic Research, 2001.

Cita MLA (9a ed.)

Harrigan, James. Specialization and the Volume of Trade: Do the Data Obey the Laws? National Bureau of Economic Research, 2001.