Freeman, R. B. (2005). Does globalization of the scientific/engineering workforce threaten U.S. economic leadership? National Bureau of Economic Research.
Chicago-Zitierstil (17. Ausg.)Freeman, Richard B. Does Globalization of the Scientific/engineering Workforce Threaten U.S. Economic Leadership? Cambridge, Mass: National Bureau of Economic Research, 2005.
MLA-Zitierstil (9. Ausg.)Freeman, Richard B. Does Globalization of the Scientific/engineering Workforce Threaten U.S. Economic Leadership? National Bureau of Economic Research, 2005.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.