APA
Helpman E., National Bureau of Economic Research, Itskhoki O. & Redding S. (2011). Trade and labor market outcomes. Cambridge: NBER.
Chicago
Helpman Elhanan, National Bureau of Economic Research, Itskhoki Oleg and Redding Stephen. 2011. Trade and labor market outcomes. Cambridge: NBER.
Harvard
Helpman E., National Bureau of Economic Research, Itskhoki O. and Redding S. (2011). Trade and labor market outcomes. Cambridge: NBER.
MLA
Helpman Elhanan, National Bureau of Economic Research, Itskhoki Oleg and Redding Stephen. Trade and labor market outcomes. Cambridge: NBER. 2011.