| APA | SPFS. (2012, February 16). In Acronym Geek. Retrieved 22:26, February 16, 2012, from http://www.acronymgeek.com/SPFS |
| MLA | "SPFS." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/SPFS>. |
| MHRA | 'SPFS', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/SPFS> [accessed 16 February 2012] |
| Chicago | "SPFS", http://www.acronymgeek.com/SPFS (accessed February 16, 2012). |
| CBE/CSE | SPFS [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/SPFS. |
| Bluebook | SPFS, http://www.acronymgeek.com/SPFS (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SPFS, http://www.acronymgeek.com/SPFS (optional description here) (as of Feb. 16, 2012, 22:26). |
| AMA | SPFS. Acronym Geek. February 16, 2012, 22:26. Available at: http://www.acronymgeek.com/SPFS. Accessed February 16, 2012, 22:26. |