Vella, J. K., & Ashworth, J. (2008). On teaching and learning: Putting the principles and practices of dialogue education into action (First edition.). Jossey-Bass.
Chicago-referens (17:e uppl.)Vella, Jane Kathryn, och Joanna Ashworth. On Teaching and Learning: Putting the Principles and Practices of Dialogue Education into Action. First edition. San Francisco, California: Jossey-Bass, 2008.
MLA-referens (9:e uppl.)Vella, Jane Kathryn, och Joanna Ashworth. On Teaching and Learning: Putting the Principles and Practices of Dialogue Education into Action. First edition. Jossey-Bass, 2008.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.