| APA | AOPR. (2012, February 15). In Acronym Geek. Retrieved 06:41, February 15, 2012, from http://www.acronymgeek.com/AOPR |
| MLA | "AOPR." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/AOPR>. |
| MHRA | 'AOPR', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/AOPR> [accessed 15 February 2012] |
| Chicago | "AOPR", http://www.acronymgeek.com/AOPR (accessed February 15, 2012). |
| CBE/CSE | AOPR [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/AOPR. |
| Bluebook | AOPR, http://www.acronymgeek.com/AOPR (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, AOPR, http://www.acronymgeek.com/AOPR (optional description here) (as of Feb. 15, 2012, 06:41). |
| AMA | AOPR. Acronym Geek. February 15, 2012, 06:41. Available at: http://www.acronymgeek.com/AOPR. Accessed February 15, 2012, 06:41. |