| APA | OTNP. (2012, February 15). In Acronym Geek. Retrieved 20:24, February 15, 2012, from http://www.acronymgeek.com/OTNP |
| MLA | "OTNP." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/OTNP>. |
| MHRA | 'OTNP', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/OTNP> [accessed 15 February 2012] |
| Chicago | "OTNP", http://www.acronymgeek.com/OTNP (accessed February 15, 2012). |
| CBE/CSE | OTNP [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/OTNP. |
| Bluebook | OTNP, http://www.acronymgeek.com/OTNP (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OTNP, http://www.acronymgeek.com/OTNP (optional description here) (as of Feb. 15, 2012, 20:24). |
| AMA | OTNP. Acronym Geek. February 15, 2012, 20:24. Available at: http://www.acronymgeek.com/OTNP. Accessed February 15, 2012, 20:24. |