Citazione APA

Holmes, B., & Gardner, J. (2006). E-learning: Concepts and practice. Sage Publications Ltd..

Stile di citazione Chicago

Holmes, Bryn, e John Gardner. E-learning: Concepts and Practice. London: Sage Publications Ltd., 2006.

Citazione MLA

Holmes, Bryn, e John Gardner. E-learning: Concepts and Practice. Sage Publications Ltd., 2006.