APA-Zitierstil (7. Ausg.)

Freeman, R. B., Jin, E., & Shen, C. (2004). Where do new US-trained science-engineering PhDs come from? National Bureau of Economic Research.

Chicago-Zitierstil (17. Ausg.)

Freeman, Richard B., Emily Jin, und Chia-Yu Shen. Where Do New US-trained Science-engineering PhDs Come from? Cambridge, Mass: National Bureau of Economic Research, 2004.

MLA-Zitierstil (9. Ausg.)

Freeman, Richard B., et al. Where Do New US-trained Science-engineering PhDs Come from? National Bureau of Economic Research, 2004.