(2000). Percentage of Students Enrolled in Distance Education Courses: 1995. U.S. Department of Education.
Цитирование в стиле Чикаго (17-е изд.)Percentage of Students Enrolled in Distance Education Courses: 1995. U.S. Department of Education, 2000.
Цитирование MLA (9-е изд.)Percentage of Students Enrolled in Distance Education Courses: 1995. U.S. Department of Education, 2000.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.