APA

Martha F. Cleveland-Innes; D. Randy Garrison, .An Introduction to Distance Education: Understanding Teaching and Learning in a New Era. : Taylor and Francis.

Chicago

Martha F. Cleveland-Innes; D. Randy Garrison, .An Introduction to Distance Education: Understanding Teaching and Learning in a New Era. : Taylor and Francis.

Harvard

Martha F. Cleveland-Innes; D. Randy Garrison, .An Introduction to Distance Education: Understanding Teaching and Learning in a New Era. : Taylor and Francis.

MLA

Martha F. Cleveland-Innes; D. Randy Garrison, .: Taylor and Francis. .