Cita APA (7a ed.)

Abraham, K. G., & Shimer, R. (2001). Changes in unemployment duration and labor force attachment. National Bureau of Economic Research.

Cita Chicago Style (17a ed.)

Abraham, Katharine G., y Robert Shimer. Changes in Unemployment Duration and Labor Force Attachment. Cambridge, MA: National Bureau of Economic Research, 2001.

Cita MLA (9a ed.)

Abraham, Katharine G., y Robert Shimer. Changes in Unemployment Duration and Labor Force Attachment. National Bureau of Economic Research, 2001.