| APA | SPB. (2012, February 9). In Acronym Geek. Retrieved 20:30, February 9, 2012, from http://www.acronymgeek.com/SPB |
| MLA | "SPB." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/SPB>. |
| MHRA | 'SPB', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/SPB> [accessed 9 February 2012] |
| Chicago | "SPB", http://www.acronymgeek.com/SPB (accessed February 9, 2012). |
| CBE/CSE | SPB [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/SPB. |
| Bluebook | SPB, http://www.acronymgeek.com/SPB (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SPB, http://www.acronymgeek.com/SPB (optional description here) (as of Feb. 9, 2012, 20:30). |
| AMA | SPB. Acronym Geek. February 9, 2012, 20:30. Available at: http://www.acronymgeek.com/SPB. Accessed February 9, 2012, 20:30. |