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