Cita APA (7th ed.)

Krueger, A. B., & Whitmore, D. M. (2000). The effects of attending a small class in the early grades on college-test taking and middle school test results: Evidence from Project Star. National Bureau of Economic Research.

Cita Chicago (17th ed.)

Krueger, Alan B., i Diane M. Whitmore. The Effects of Attending a Small Class in the Early Grades on College-test Taking and Middle School Test Results: Evidence from Project Star. Cambridge: National Bureau of Economic Research, 2000.

Cita MLA (9th ed.)

Krueger, Alan B., i Diane M. Whitmore. The Effects of Attending a Small Class in the Early Grades on College-test Taking and Middle School Test Results: Evidence from Project Star. National Bureau of Economic Research, 2000.