| APA | SOPPS. (2012, February 12). In Acronym Geek. Retrieved 12:35, February 12, 2012, from http://www.acronymgeek.com/SOPPS |
| MLA | "SOPPS." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/SOPPS>. |
| MHRA | 'SOPPS', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/SOPPS> [accessed 12 February 2012] |
| Chicago | "SOPPS", http://www.acronymgeek.com/SOPPS (accessed February 12, 2012). |
| CBE/CSE | SOPPS [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/SOPPS. |
| Bluebook | SOPPS, http://www.acronymgeek.com/SOPPS (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SOPPS, http://www.acronymgeek.com/SOPPS (optional description here) (as of Feb. 12, 2012, 12:35). |
| AMA | SOPPS. Acronym Geek. February 12, 2012, 12:35. Available at: http://www.acronymgeek.com/SOPPS. Accessed February 12, 2012, 12:35. |