| APA | SFK. (2012, February 14). In Acronym Geek. Retrieved 11:29, February 14, 2012, from http://www.acronymgeek.com/SFK |
| MLA | "SFK." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/SFK>. |
| MHRA | 'SFK', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/SFK> [accessed 14 February 2012] |
| Chicago | "SFK", http://www.acronymgeek.com/SFK (accessed February 14, 2012). |
| CBE/CSE | SFK [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/SFK. |
| Bluebook | SFK, http://www.acronymgeek.com/SFK (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SFK, http://www.acronymgeek.com/SFK (optional description here) (as of Feb. 14, 2012, 11:29). |
| AMA | SFK. Acronym Geek. February 14, 2012, 11:29. Available at: http://www.acronymgeek.com/SFK. Accessed February 14, 2012, 11:29. |