APA
Black S. E., National Bureau of Economic Research, Cortes K. E. & Lincove J. A. (2015). Apply yourself. Cambridge: NBER.
Chicago
Black Sandra E, National Bureau of Economic Research, Cortes Kalena E and Lincove Jane Arnold. 2015. Apply yourself. Cambridge: NBER.
Harvard
Black S. E., National Bureau of Economic Research, Cortes K. E. and Lincove J. A. (2015). Apply yourself. Cambridge: NBER.
MLA
Black Sandra E, National Bureau of Economic Research, Cortes Kalena E and Lincove Jane Arnold. Apply yourself. Cambridge: NBER. 2015.