| APA | SPT. (2012, February 13). In Acronym Geek. Retrieved 20:59, February 13, 2012, from http://www.acronymgeek.com/SPT |
| MLA | "SPT." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/SPT>. |
| MHRA | 'SPT', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/SPT> [accessed 13 February 2012] |
| Chicago | "SPT", http://www.acronymgeek.com/SPT (accessed February 13, 2012). |
| CBE/CSE | SPT [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/SPT. |
| Bluebook | SPT, http://www.acronymgeek.com/SPT (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SPT, http://www.acronymgeek.com/SPT (optional description here) (as of Feb. 13, 2012, 20:59). |
| AMA | SPT. Acronym Geek. February 13, 2012, 20:59. Available at: http://www.acronymgeek.com/SPT. Accessed February 13, 2012, 20:59. |