| APA | OTNS. (2012, February 16). In Acronym Geek. Retrieved 19:50, February 16, 2012, from http://www.acronymgeek.com/OTNS |
| MLA | "OTNS." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/OTNS>. |
| MHRA | 'OTNS', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/OTNS> [accessed 16 February 2012] |
| Chicago | "OTNS", http://www.acronymgeek.com/OTNS (accessed February 16, 2012). |
| CBE/CSE | OTNS [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/OTNS. |
| Bluebook | OTNS, http://www.acronymgeek.com/OTNS (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OTNS, http://www.acronymgeek.com/OTNS (optional description here) (as of Feb. 16, 2012, 19:50). |
| AMA | OTNS. Acronym Geek. February 16, 2012, 19:50. Available at: http://www.acronymgeek.com/OTNS. Accessed February 16, 2012, 19:50. |