Cita APA

Betts, J. R., & Grogger, J. (2000). The impact of grading standards on student achievement, educational attainment, and entry-level earnings. National Bureau of Economic Research.

Citación estilo Chicago

Betts, Julian R., and Jeff Grogger. The Impact of Grading Standards on Student Achievement, Educational Attainment, and Entry-level Earnings. Cambridge: National Bureau of Economic Research, 2000.

Cita MLA

Betts, Julian R., and Jeff Grogger. The Impact of Grading Standards on Student Achievement, Educational Attainment, and Entry-level Earnings. National Bureau of Economic Research, 2000.