| Style | Reference Text |
|---|
| APA | SOPI. (2010, February 10). In Acronym Geek. Retrieved 08:37, February 10, 2010, from http://www.acronymgeek.com/SOPI |
| MLA | "SOPI." Acronym Geek. 10 Feb 2010, 08:37. Acronym Geek. 10 Feb 2010 <http://www.acronymgeek.com/SOPI>. |
| MHRA | 'SOPI', Acronym Geek, 10 February 2010, 08:37, <http://www.acronymgeek.com/SOPI> [accessed 10 February 2010] |
| Chicago | "SOPI," http://www.acronymgeek.com/SOPI (accessed February 10, 2010). |
| CBE/CSE | SOPI [Internet]. Acronym Geek; 2010 Feb 10, 08:37 [cited 2010 Feb 10]. Available from: http://www.acronymgeek.com/SOPI. |
| Bluebook | SOPI, http://www.acronymgeek.com/SOPI (last visited February 10, 2010). |
| Bluebook: Harvard JOLT | See Acronym Geek, SOPI, http://www.acronymgeek.com/SOPI (optional description here) (as of Feb. 10, 2010, 08:37). |
| AMA | SOPI. Acronym Geek. February 10, 2010, 08:37. Available at: http://www.acronymgeek.com/SOPI. Accessed February 10, 2010. |