| APA | SPBX. (2012, February 16). In Acronym Geek. Retrieved 20:30, February 16, 2012, from http://www.acronymgeek.com/SPBX |
| MLA | "SPBX." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/SPBX>. |
| MHRA | 'SPBX', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/SPBX> [accessed 16 February 2012] |
| Chicago | "SPBX", http://www.acronymgeek.com/SPBX (accessed February 16, 2012). |
| CBE/CSE | SPBX [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/SPBX. |
| Bluebook | SPBX, http://www.acronymgeek.com/SPBX (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SPBX, http://www.acronymgeek.com/SPBX (optional description here) (as of Feb. 16, 2012, 20:30). |
| AMA | SPBX. Acronym Geek. February 16, 2012, 20:30. Available at: http://www.acronymgeek.com/SPBX. Accessed February 16, 2012, 20:30. |