APA
Schwerdt G., National Bureau of Economic Research, West M. R. & Winters M. A. (2015). The Effects of test-based retention on student outcomes over time. Cambridge: NBER.
Chicago
Schwerdt Guido, National Bureau of Economic Research, West Martin R and Winters Marcus A. 2015. The Effects of test-based retention on student outcomes over time. Cambridge: NBER.
Harvard
Schwerdt G., National Bureau of Economic Research, West M. R. and Winters M. A. (2015). The Effects of test-based retention on student outcomes over time. Cambridge: NBER.
MLA
Schwerdt Guido, National Bureau of Economic Research, West Martin R and Winters Marcus A. The Effects of test-based retention on student outcomes over time. Cambridge: NBER. 2015.