Cita APA (7a ed.)

Overman, H. G., & Puga, D. (1999). Unemployment clusters across European regions and countries. Centre for Economic Performance.

Cita Chicago Style (17a ed.)

Overman, Henry G., y Diego Puga. Unemployment Clusters Across European Regions and Countries. London: Centre for Economic Performance, 1999.

Cita MLA (9a ed.)

Overman, Henry G., y Diego Puga. Unemployment Clusters Across European Regions and Countries. Centre for Economic Performance, 1999.