(2000). Average Math & Science Performance Scores of 8th- Grade Students. U.S. Department of Education.
Cita Chicago (17th ed.)Average Math & Science Performance Scores of 8th- Grade Students. U.S. Department of Education, 2000.
Cita MLA (9th ed.)Average Math & Science Performance Scores of 8th- Grade Students. U.S. Department of Education, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.