APA
Stephens M., National Bureau of Economic Research & Unayama J. T. (2015). Estimating the impacts of program benefits. Cambridge: NBER.
Chicago
Stephens Melvin, National Bureau of Economic Research and Unayama Jr Takashi. 2015. Estimating the impacts of program benefits. Cambridge: NBER.
Harvard
Stephens M., National Bureau of Economic Research and Unayama J. T. (2015). Estimating the impacts of program benefits. Cambridge: NBER.
MLA
Stephens Melvin, National Bureau of Economic Research and Unayama Jr Takashi. Estimating the impacts of program benefits. Cambridge: NBER. 2015.