APA引文

(2000). Preprimary Enrollment Rates. U.S. Department of Education.

芝加哥风格引文

Preprimary Enrollment Rates. U.S. Department of Education, 2000.

MLA引文

Preprimary Enrollment Rates. U.S. Department of Education, 2000.

警告：这些引文格式不一定是100％准确.