APA
Gustman A. L., National Bureau of Economic Research, Steinmeier T. L. & Tabatabai N. (2013). The Social security windfall elimination and government pension offset provisions for public employees in the health and retirement study. Cambridge: NBER.
Chicago
Gustman Alan L, National Bureau of Economic Research, Steinmeier Thomas L and Tabatabai Nahid. 2013. The Social security windfall elimination and government pension offset provisions for public employees in the health and retirement study. Cambridge: NBER.
Harvard
Gustman A. L., National Bureau of Economic Research, Steinmeier T. L. and Tabatabai N. (2013). The Social security windfall elimination and government pension offset provisions for public employees in the health and retirement study. Cambridge: NBER.
MLA
Gustman Alan L, National Bureau of Economic Research, Steinmeier Thomas L and Tabatabai Nahid. The Social security windfall elimination and government pension offset provisions for public employees in the health and retirement study. Cambridge: NBER. 2013.