| APA | SFEY. (2012, February 15). In Acronym Geek. Retrieved 12:45, February 15, 2012, from http://www.acronymgeek.com/SFEY |
| MLA | "SFEY." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/SFEY>. |
| MHRA | 'SFEY', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/SFEY> [accessed 15 February 2012] |
| Chicago | "SFEY", http://www.acronymgeek.com/SFEY (accessed February 15, 2012). |
| CBE/CSE | SFEY [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/SFEY. |
| Bluebook | SFEY, http://www.acronymgeek.com/SFEY (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SFEY, http://www.acronymgeek.com/SFEY (optional description here) (as of Feb. 15, 2012, 12:45). |
| AMA | SFEY. Acronym Geek. February 15, 2012, 12:45. Available at: http://www.acronymgeek.com/SFEY. Accessed February 15, 2012, 12:45. |