(2000). Trends in Science Performance of 9-, 13-, & 17-year olds. U.S. Department of Education.
Chicagoスタイル(17版)引用形式Trends in Science Performance of 9-, 13-, & 17-year Olds. U.S. Department of Education, 2000.
MLA(9版)引用形式Trends in Science Performance of 9-, 13-, & 17-year Olds. U.S. Department of Education, 2000.
警告: この引用は必ずしも正確ではありません.