Desmet, K., & Fafchamps, M. (2006). Employment Concentration across U.S. Counties.
Cita Chicago (17th ed.)Desmet, K., i M. Fafchamps. Employment Concentration Across U.S. Counties. 2006.
Cita MLA (9th ed.)Desmet, K., i M. Fafchamps. Employment Concentration Across U.S. Counties. 2006.
Atenció: Aquestes cites poden no estar 100% correctes.