Event Dropout Rates for Those in Grades 10-12, Ages 15-24. US Department of Education.
芝加哥风格引文Event Dropout Rates for Those in Grades 10-12, Ages 15-24. US Department of Education.
MLA引文Event Dropout Rates for Those in Grades 10-12, Ages 15-24. US Department of Education.
警告：这些引文格式不一定是100％准确.