| APA | STEF. (2012, February 15). In Acronym Geek. Retrieved 00:36, February 15, 2012, from http://www.acronymgeek.com/STEF |
| MLA | "STEF." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/STEF>. |
| MHRA | 'STEF', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/STEF> [accessed 15 February 2012] |
| Chicago | "STEF", http://www.acronymgeek.com/STEF (accessed February 15, 2012). |
| CBE/CSE | STEF [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/STEF. |
| Bluebook | STEF, http://www.acronymgeek.com/STEF (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, STEF, http://www.acronymgeek.com/STEF (optional description here) (as of Feb. 15, 2012, 00:36). |
| AMA | STEF. Acronym Geek. February 15, 2012, 00:36. Available at: http://www.acronymgeek.com/STEF. Accessed February 15, 2012, 00:36. |