| APA | SOPW. (2012, February 14). In Acronym Geek. Retrieved 18:00, February 14, 2012, from http://www.acronymgeek.com/SOPW |
| MLA | "SOPW." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/SOPW>. |
| MHRA | 'SOPW', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/SOPW> [accessed 14 February 2012] |
| Chicago | "SOPW", http://www.acronymgeek.com/SOPW (accessed February 14, 2012). |
| CBE/CSE | SOPW [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/SOPW. |
| Bluebook | SOPW, http://www.acronymgeek.com/SOPW (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SOPW, http://www.acronymgeek.com/SOPW (optional description here) (as of Feb. 14, 2012, 18:00). |
| AMA | SOPW. Acronym Geek. February 14, 2012, 18:00. Available at: http://www.acronymgeek.com/SOPW. Accessed February 14, 2012, 18:00. |