| APA | TIOU. (2012, February 16). In Acronym Geek. Retrieved 07:37, February 16, 2012, from http://www.acronymgeek.com/TIOU |
| MLA | "TIOU." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/TIOU>. |
| MHRA | 'TIOU', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/TIOU> [accessed 16 February 2012] |
| Chicago | "TIOU", http://www.acronymgeek.com/TIOU (accessed February 16, 2012). |
| CBE/CSE | TIOU [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/TIOU. |
| Bluebook | TIOU, http://www.acronymgeek.com/TIOU (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, TIOU, http://www.acronymgeek.com/TIOU (optional description here) (as of Feb. 16, 2012, 07:37). |
| AMA | TIOU. Acronym Geek. February 16, 2012, 07:37. Available at: http://www.acronymgeek.com/TIOU. Accessed February 16, 2012, 07:37. |