Harrigan, J. (2001). Specialization and the Volume of Trade: Do the Data Obey the Laws? National Bureau of Economic Research.
Chicago-Zitierstil (17. Ausg.)Harrigan, James. Specialization and the Volume of Trade: Do the Data Obey the Laws? Cambridge, Mass: National Bureau of Economic Research, 2001.
MLA-Zitierstil (8. Ausg.)Harrigan, James. Specialization and the Volume of Trade: Do the Data Obey the Laws? National Bureau of Economic Research, 2001.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.