Iurgel, I. A., Zagalo, N., & Petta, P. (2009). Interactive storytelling: Second Joint International Conference on Interactive Digital Storytelling, ICIDS 2009, Guimaraes, Portugal, December 9-11, 2009 Proceedings (Primera edición.). Springer.
Chicago-viite (17. p.)Iurgel, Ido A., Nelson Zagalo, ja Paolo Petta. Interactive Storytelling: Second Joint International Conference on Interactive Digital Storytelling, ICIDS 2009, Guimaraes, Portugal, December 9-11, 2009 Proceedings. Primera edición. New York: Springer, 2009.
MLA-viite (8. p.)Iurgel, Ido A., et al. Interactive Storytelling: Second Joint International Conference on Interactive Digital Storytelling, ICIDS 2009, Guimaraes, Portugal, December 9-11, 2009 Proceedings. Primera edición. Springer, 2009.