APA
Frakes M. D., National Bureau of Economic Research, Gruber J. & Justicz T. (2020). Public and private options in practice. Cambridge: NBER.
Chicago
Frakes Michael D, National Bureau of Economic Research, Gruber Jonathan and Justicz Timothy. 2020. Public and private options in practice. Cambridge: NBER.
Harvard
Frakes M. D., National Bureau of Economic Research, Gruber J. and Justicz T. (2020). Public and private options in practice. Cambridge: NBER.
MLA
Frakes Michael D, National Bureau of Economic Research, Gruber Jonathan and Justicz Timothy. Public and private options in practice. Cambridge: NBER. 2020.