APA
Kumler T., National Bureau of Economic Research, Verhoogen E. & Frias J. A. (2013). Enlisting employees in Improving payroll-tax compliance. Cambridge: NBER.
Chicago
Kumler Todd, National Bureau of Economic Research, Verhoogen Eric and Frias Judith A. 2013. Enlisting employees in Improving payroll-tax compliance. Cambridge: NBER.
Harvard
Kumler T., National Bureau of Economic Research, Verhoogen E. and Frias J. A. (2013). Enlisting employees in Improving payroll-tax compliance. Cambridge: NBER.
MLA
Kumler Todd, National Bureau of Economic Research, Verhoogen Eric and Frias Judith A. Enlisting employees in Improving payroll-tax compliance. Cambridge: NBER. 2013.