Cita APA (7th ed.)

SpringerLink (Online service) & Cerri, S. A. (2012). Intelligent tutoring systems: 11th International conference, ITS 2012, Chania, Crete, Greece, June 14-18, 2012. Proceedings. Springer Berlin Heidelberg.

Cita Chicago (17th ed.)

SpringerLink (Online service) i Stefano A. Cerri. Intelligent Tutoring Systems: 11th International Conference, ITS 2012, Chania, Crete, Greece, June 14-18, 2012. Proceedings. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012.

Cita MLA (8th ed.)

SpringerLink (Online service) i Stefano A. Cerri. Intelligent Tutoring Systems: 11th International Conference, ITS 2012, Chania, Crete, Greece, June 14-18, 2012. Proceedings. Springer Berlin Heidelberg, 2012.