| APA | IVTO. (2012, February 10). In Acronym Geek. Retrieved 12:51, February 10, 2012, from http://www.acronymgeek.com/IVTO |
| MLA | "IVTO." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/IVTO>. |
| MHRA | 'IVTO', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/IVTO> [accessed 10 February 2012] |
| Chicago | "IVTO", http://www.acronymgeek.com/IVTO (accessed February 10, 2012). |
| CBE/CSE | IVTO [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/IVTO. |
| Bluebook | IVTO, http://www.acronymgeek.com/IVTO (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, IVTO, http://www.acronymgeek.com/IVTO (optional description here) (as of Feb. 10, 2012, 12:51). |
| AMA | IVTO. Acronym Geek. February 10, 2012, 12:51. Available at: http://www.acronymgeek.com/IVTO. Accessed February 10, 2012, 12:51. |