| APA | SOPE. (2012, February 17). In Acronym Geek. Retrieved 01:58, February 17, 2012, from http://www.acronymgeek.com/SOPE |
| MLA | "SOPE." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/SOPE>. |
| MHRA | 'SOPE', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/SOPE> [accessed 17 February 2012] |
| Chicago | "SOPE", http://www.acronymgeek.com/SOPE (accessed February 17, 2012). |
| CBE/CSE | SOPE [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/SOPE. |
| Bluebook | SOPE, http://www.acronymgeek.com/SOPE (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SOPE, http://www.acronymgeek.com/SOPE (optional description here) (as of Feb. 17, 2012, 01:58). |
| AMA | SOPE. Acronym Geek. February 17, 2012, 01:58. Available at: http://www.acronymgeek.com/SOPE. Accessed February 17, 2012, 01:58. |