| APA | SFER. (2012, February 17). In Acronym Geek. Retrieved 02:41, February 17, 2012, from http://www.acronymgeek.com/SFER |
| MLA | "SFER." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/SFER>. |
| MHRA | 'SFER', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/SFER> [accessed 17 February 2012] |
| Chicago | "SFER", http://www.acronymgeek.com/SFER (accessed February 17, 2012). |
| CBE/CSE | SFER [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/SFER. |
| Bluebook | SFER, http://www.acronymgeek.com/SFER (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SFER, http://www.acronymgeek.com/SFER (optional description here) (as of Feb. 17, 2012, 02:41). |
| AMA | SFER. Acronym Geek. February 17, 2012, 02:41. Available at: http://www.acronymgeek.com/SFER. Accessed February 17, 2012, 02:41. |