(2000). Percentage Distribution of 1992-93 Bachelor's Degree Recipients. U.S. Department of Education.
芝加哥风格引文Percentage Distribution of 1992-93 Bachelor's Degree Recipients. U.S. Department of Education, 2000.
MLA引文Percentage Distribution of 1992-93 Bachelor's Degree Recipients. U.S. Department of Education, 2000.
警告：这些引文格式不一定是100％准确.