| APA | OTOI. (2012, February 14). In Acronym Geek. Retrieved 16:12, February 14, 2012, from http://www.acronymgeek.com/OTOI |
| MLA | "OTOI." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/OTOI>. |
| MHRA | 'OTOI', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/OTOI> [accessed 14 February 2012] |
| Chicago | "OTOI", http://www.acronymgeek.com/OTOI (accessed February 14, 2012). |
| CBE/CSE | OTOI [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/OTOI. |
| Bluebook | OTOI, http://www.acronymgeek.com/OTOI (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OTOI, http://www.acronymgeek.com/OTOI (optional description here) (as of Feb. 14, 2012, 16:12). |
| AMA | OTOI. Acronym Geek. February 14, 2012, 16:12. Available at: http://www.acronymgeek.com/OTOI. Accessed February 14, 2012, 16:12. |