United States. Office of Education, National Institute of Education, & Harrison, S. A. (1975). Improving instructional productivity in higher education. Educational Technology Pub.
Citazione stile Chigago Style (17a edizione)United States. Office of Education, National Institute of Education, e Shelley A. Harrison. Improving Instructional Productivity in Higher Education. Englewood Cliffs, N. J: Educational Technology Pub, 1975.
Citatione MLA (9a ed.)United States. Office of Education, et al. Improving Instructional Productivity in Higher Education. Educational Technology Pub, 1975.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.