APA
Gittleman M., National Bureau of Economic Research & Kleiner M. M. (2013). Wage effects of unionization and occupational licensing coverage in the United States. Cambridge: NBER.
Chicago
Gittleman Maury, National Bureau of Economic Research and Kleiner Morris M. 2013. Wage effects of unionization and occupational licensing coverage in the United States. Cambridge: NBER.
Harvard
Gittleman M., National Bureau of Economic Research and Kleiner M. M. (2013). Wage effects of unionization and occupational licensing coverage in the United States. Cambridge: NBER.
MLA
Gittleman Maury, National Bureau of Economic Research and Kleiner Morris M. Wage effects of unionization and occupational licensing coverage in the United States. Cambridge: NBER. 2013.