| APA | SFYS. (2012, February 9). In Acronym Geek. Retrieved 12:18, February 9, 2012, from http://www.acronymgeek.com/SFYS |
| MLA | "SFYS." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/SFYS>. |
| MHRA | 'SFYS', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/SFYS> [accessed 9 February 2012] |
| Chicago | "SFYS", http://www.acronymgeek.com/SFYS (accessed February 9, 2012). |
| CBE/CSE | SFYS [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/SFYS. |
| Bluebook | SFYS, http://www.acronymgeek.com/SFYS (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SFYS, http://www.acronymgeek.com/SFYS (optional description here) (as of Feb. 9, 2012, 12:18). |
| AMA | SFYS. Acronym Geek. February 9, 2012, 12:18. Available at: http://www.acronymgeek.com/SFYS. Accessed February 9, 2012, 12:18. |