APA引文

Trends in Science Performance of 9-, 13-, & 17-year olds. US Department of Education.

Chicago Style (17th ed.) Citation

Trends in Science Performance of 9-, 13-, & 17-year Olds. US Department of Education.

MLA引文

Trends in Science Performance of 9-, 13-, & 17-year Olds. US Department of Education.

警告：這些引文格式不一定是100％准確.