| APA | SP4T. (2012, February 15). In Acronym Geek. Retrieved 13:12, February 15, 2012, from http://www.acronymgeek.com/SP4T |
| MLA | "SP4T." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/SP4T>. |
| MHRA | 'SP4T', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/SP4T> [accessed 15 February 2012] |
| Chicago | "SP4T", http://www.acronymgeek.com/SP4T (accessed February 15, 2012). |
| CBE/CSE | SP4T [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/SP4T. |
| Bluebook | SP4T, http://www.acronymgeek.com/SP4T (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SP4T, http://www.acronymgeek.com/SP4T (optional description here) (as of Feb. 15, 2012, 13:12). |
| AMA | SP4T. Acronym Geek. February 15, 2012, 13:12. Available at: http://www.acronymgeek.com/SP4T. Accessed February 15, 2012, 13:12. |