(1999). All About Direct Loans. U.S. Department of Education.
芝加哥风格引文All About Direct Loans. U.S. Department of Education, 1999.
MLA引文All About Direct Loans. U.S. Department of Education, 1999.
警告：这些引文格式不一定是100％准确.
APA引文
(1999). All About Direct Loans. U.S. Department of Education.
芝加哥风格引文All About Direct Loans. U.S. Department of Education, 1999.
MLA引文All About Direct Loans. U.S. Department of Education, 1999.