| APA | OTON. (2012, February 15). In Acronym Geek. Retrieved 15:53, February 15, 2012, from http://www.acronymgeek.com/OTON |
| MLA | "OTON." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/OTON>. |
| MHRA | 'OTON', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/OTON> [accessed 15 February 2012] |
| Chicago | "OTON", http://www.acronymgeek.com/OTON (accessed February 15, 2012). |
| CBE/CSE | OTON [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/OTON. |
| Bluebook | OTON, http://www.acronymgeek.com/OTON (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OTON, http://www.acronymgeek.com/OTON (optional description here) (as of Feb. 15, 2012, 15:53). |
| AMA | OTON. Acronym Geek. February 15, 2012, 15:53. Available at: http://www.acronymgeek.com/OTON. Accessed February 15, 2012, 15:53. |