APA
Kerr W. R., National Bureau of Economic Research, . (2013). U.S. high-skilled immigration, innovation and entrepreneurship. Cambridge: NBER.
Chicago
Kerr William R, National Bureau of Economic Research, . 2013. U.S. high-skilled immigration, innovation and entrepreneurship. Cambridge: NBER.
Harvard
Kerr W. R., National Bureau of Economic Research, . (2013). U.S. high-skilled immigration, innovation and entrepreneurship. Cambridge: NBER.
MLA
Kerr William R, National Bureau of Economic Research, . U.S. high-skilled immigration, innovation and entrepreneurship. Cambridge: NBER. 2013.