APA
Callen M. e. a., National Bureau of Economic Research, . (2016). The Political economy of public sector absence. Cambridge: NBER.
Chicago
Callen Michael et al, National Bureau of Economic Research, . 2016. The Political economy of public sector absence. Cambridge: NBER.
Harvard
Callen M. e. a., National Bureau of Economic Research, . (2016). The Political economy of public sector absence. Cambridge: NBER.
MLA
Callen Michael et al, National Bureau of Economic Research, . The Political economy of public sector absence. Cambridge: NBER. 2016.