| APA | SDFS. (2012, February 16). In Acronym Geek. Retrieved 14:06, February 16, 2012, from http://www.acronymgeek.com/SDFS |
| MLA | "SDFS." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/SDFS>. |
| MHRA | 'SDFS', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/SDFS> [accessed 16 February 2012] |
| Chicago | "SDFS", http://www.acronymgeek.com/SDFS (accessed February 16, 2012). |
| CBE/CSE | SDFS [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/SDFS. |
| Bluebook | SDFS, http://www.acronymgeek.com/SDFS (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SDFS, http://www.acronymgeek.com/SDFS (optional description here) (as of Feb. 16, 2012, 14:06). |
| AMA | SDFS. Acronym Geek. February 16, 2012, 14:06. Available at: http://www.acronymgeek.com/SDFS. Accessed February 16, 2012, 14:06. |