| APA | SOPJ. (2012, February 17). In Acronym Geek. Retrieved 04:52, February 17, 2012, from http://www.acronymgeek.com/SOPJ |
| MLA | "SOPJ." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/SOPJ>. |
| MHRA | 'SOPJ', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/SOPJ> [accessed 17 February 2012] |
| Chicago | "SOPJ", http://www.acronymgeek.com/SOPJ (accessed February 17, 2012). |
| CBE/CSE | SOPJ [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/SOPJ. |
| Bluebook | SOPJ, http://www.acronymgeek.com/SOPJ (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SOPJ, http://www.acronymgeek.com/SOPJ (optional description here) (as of Feb. 17, 2012, 04:52). |
| AMA | SOPJ. Acronym Geek. February 17, 2012, 04:52. Available at: http://www.acronymgeek.com/SOPJ. Accessed February 17, 2012, 04:52. |