APA引文

Irwin, D. A. (2000). Could the U.S. iron industry have survived free trade after the civil war? National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Irwin, Douglas A. Could the U.S. Iron Industry Have Survived Free Trade After the Civil War? Cambridge: National Bureau of Economic Research, 2000.

MLA引文

Irwin, Douglas A. Could the U.S. Iron Industry Have Survived Free Trade After the Civil War? National Bureau of Economic Research, 2000.