Cita APA (7a ed.)

Ball, L. M. (2000). Policy rules and external shocks. National Bureau of Economic Research.

Cita Chicago Style (17a ed.)

Ball, Laurence M. Policy Rules and External Shocks. Cambridge, MA: National Bureau of Economic Research, 2000.

Cita MLA (9a ed.)

Ball, Laurence M. Policy Rules and External Shocks. National Bureau of Economic Research, 2000.