| APA | SPP'S. (2012, February 12). In Acronym Geek. Retrieved 11:14, February 12, 2012, from http://www.acronymgeek.com/SPP'S |
| MLA | "SPP'S." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/SPP'S>. |
| MHRA | 'SPP'S', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/SPP'S> [accessed 12 February 2012] |
| Chicago | "SPP'S", http://www.acronymgeek.com/SPP'S (accessed February 12, 2012). |
| CBE/CSE | SPP'S [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/SPP'S. |
| Bluebook | SPP'S, http://www.acronymgeek.com/SPP'S (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SPP'S, http://www.acronymgeek.com/SPP'S (optional description here) (as of Feb. 12, 2012, 11:14). |
| AMA | SPP'S. Acronym Geek. February 12, 2012, 11:14. Available at: http://www.acronymgeek.com/SPP'S. Accessed February 12, 2012, 11:14. |