Cita APA (7th ed.)

Skinner, J., Fisher, E. S., & Wennberg, J. E. (2001). The efficiency of medicare. National Bureau of Economic Research.

Cita Chicago (17th ed.)

Skinner, Jonathan, Elliott S. Fisher, i John E. Wennberg. The Efficiency of Medicare. Cambridge: National Bureau of Economic Research, 2001.

Cita MLA (9th ed.)

Skinner, Jonathan, et al. The Efficiency of Medicare. National Bureau of Economic Research, 2001.