Cita APA (7a ed.)

Clotfelter, C. T. (2000). Interracial contact in high school extracurricular activities. National Bureau of Economic Research.

Cita Chicago Style (17a ed.)

Clotfelter, Charles T. Interracial Contact in High School Extracurricular Activities. Cambridge, MA: National Bureau of Economic Research, 2000.

Cita MLA (9a ed.)

Clotfelter, Charles T. Interracial Contact in High School Extracurricular Activities. National Bureau of Economic Research, 2000.