GARRISON, D. Randy, 2017. E-learning in the 21 st century : a community of inquiry framework for research and practice. Third edition. New York: Routledge Taylor & Francis Group. ISBN 9781138953567.
Elsevier - Harvard (with titles)Garrison, D.R., 2017. E-learning in the 21 st century : a community of inquiry framework for research and practice, Third edition. ed. Routledge Taylor & Francis Group, New York.
American Psychological Association 7th editionGarrison, D. R. (ca. 2017). E-learning in the 21 st century : a community of inquiry framework for research and practice (Third edition) [Book]. Routledge Taylor & Francis Group.
Springer - Basic (author-date)Garrison DR (2017) E-learning in the 21 st century : a community of inquiry framework for research and practice, Third edition. Routledge Taylor & Francis Group, New York
Juristische Zitierweise (Stüber) (Deutsch)Garrison, D. Randy, E-learning in the 21 st century : a community of inquiry framework for research and practice, Third edition , New York 2017.