Vella, J. K., & Ashworth, J. (2008). On teaching and learning: Putting the principles and practices of dialogue education into action (First edition.). Jossey-Bass.
Čikaški stil citiranja (17. izdanje)Vella, Jane Kathryn, i 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 način citiranja (9. izdanje)Vella, Jane Kathryn, i Joanna Ashworth. On Teaching and Learning: Putting the Principles and Practices of Dialogue Education into Action. First edition. Jossey-Bass, 2008.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.