| APA | ONPR. (2012, February 17). In Acronym Geek. Retrieved 01:05, February 17, 2012, from http://www.acronymgeek.com/ONPR |
| MLA | "ONPR." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/ONPR>. |
| MHRA | 'ONPR', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/ONPR> [accessed 17 February 2012] |
| Chicago | "ONPR", http://www.acronymgeek.com/ONPR (accessed February 17, 2012). |
| CBE/CSE | ONPR [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/ONPR. |
| Bluebook | ONPR, http://www.acronymgeek.com/ONPR (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ONPR, http://www.acronymgeek.com/ONPR (optional description here) (as of Feb. 17, 2012, 01:05). |
| AMA | ONPR. Acronym Geek. February 17, 2012, 01:05. Available at: http://www.acronymgeek.com/ONPR. Accessed February 17, 2012, 01:05. |