(2000). Students Who Took Advanced Placement (AP) Examinations. U.S. Department of Education.
芝加哥风格引文Students Who Took Advanced Placement (AP) Examinations. U.S. Department of Education, 2000.
MLA引文Students Who Took Advanced Placement (AP) Examinations. U.S. Department of Education, 2000.
警告：这些引文格式不一定是100％准确.