United States. Office of Education, National Institute of Education, & Harrison, S. A. (1975). Improving instructional productivity in higher education. Educational Technology Pub.
Цитирование в стиле Чикаго (17-е изд.)United States. Office of Education, National Institute of Education, и Shelley A. Harrison. Improving Instructional Productivity in Higher Education. Englewood Cliffs, N. J: Educational Technology Pub, 1975.
Цитирование MLA (9-е изд.)United States. Office of Education, et al. Improving Instructional Productivity in Higher Education. Educational Technology Pub, 1975.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.