Cleveland-Innes, M., & Garrison, D. R. (2021). An introduction to distance education: Understanding teaching and learning in a new era (2nd edition.). Routledge.
Chicago-Zitierstil (17. Ausg.)Cleveland-Innes, Martha, und D. Randy Garrison. An Introduction to Distance Education: Understanding Teaching and Learning in a New Era. 2nd edition. New York ; London: Routledge, 2021.
MLA-Zitierstil (9. Ausg.)Cleveland-Innes, Martha, und D. Randy Garrison. An Introduction to Distance Education: Understanding Teaching and Learning in a New Era. 2nd edition. Routledge, 2021.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.