| APA | SFYN. (2012, February 15). In Acronym Geek. Retrieved 05:24, February 15, 2012, from http://www.acronymgeek.com/SFYN |
| MLA | "SFYN." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/SFYN>. |
| MHRA | 'SFYN', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/SFYN> [accessed 15 February 2012] |
| Chicago | "SFYN", http://www.acronymgeek.com/SFYN (accessed February 15, 2012). |
| CBE/CSE | SFYN [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/SFYN. |
| Bluebook | SFYN, http://www.acronymgeek.com/SFYN (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SFYN, http://www.acronymgeek.com/SFYN (optional description here) (as of Feb. 15, 2012, 05:24). |
| AMA | SFYN. Acronym Geek. February 15, 2012, 05:24. Available at: http://www.acronymgeek.com/SFYN. Accessed February 15, 2012, 05:24. |