APA Style

Cleveland-Innes, M, F., Garrison, D, R. (2021). An introduction to distance education : understanding teaching and learning in a new era (2nd Edition). New York: Routledge.

MLA Style

Cleveland-Innes, Martha, F.., Garrison, D, Randy. "An introduction to distance education : understanding teaching and learning in a new era". 2nd Edition New York: Routledge, 2021. Text.