APA
Neumark D., National Bureau of Economic Research & Williams K. E. (2020). Do state earned income tax credits increase participation in the federal EITC?. Cambridge: NBER.
Chicago
Neumark David, National Bureau of Economic Research and Williams Katherine E. 2020. Do state earned income tax credits increase participation in the federal EITC?. Cambridge: NBER.
Harvard
Neumark D., National Bureau of Economic Research and Williams K. E. (2020). Do state earned income tax credits increase participation in the federal EITC?. Cambridge: NBER.
MLA
Neumark David, National Bureau of Economic Research and Williams Katherine E. Do state earned income tax credits increase participation in the federal EITC?. Cambridge: NBER. 2020.