| APA | SOPB. (2012, February 17). In Acronym Geek. Retrieved 00:11, February 17, 2012, from http://www.acronymgeek.com/SOPB |
| MLA | "SOPB." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/SOPB>. |
| MHRA | 'SOPB', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/SOPB> [accessed 17 February 2012] |
| Chicago | "SOPB", http://www.acronymgeek.com/SOPB (accessed February 17, 2012). |
| CBE/CSE | SOPB [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/SOPB. |
| Bluebook | SOPB, http://www.acronymgeek.com/SOPB (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SOPB, http://www.acronymgeek.com/SOPB (optional description here) (as of Feb. 17, 2012, 00:11). |
| AMA | SOPB. Acronym Geek. February 17, 2012, 00:11. Available at: http://www.acronymgeek.com/SOPB. Accessed February 17, 2012, 00:11. |