| APA | FESY. (2012, February 15). In Acronym Geek. Retrieved 14:10, February 15, 2012, from http://www.acronymgeek.com/FESY |
| MLA | "FESY." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/FESY>. |
| MHRA | 'FESY', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/FESY> [accessed 15 February 2012] |
| Chicago | "FESY", http://www.acronymgeek.com/FESY (accessed February 15, 2012). |
| CBE/CSE | FESY [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/FESY. |
| Bluebook | FESY, http://www.acronymgeek.com/FESY (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, FESY, http://www.acronymgeek.com/FESY (optional description here) (as of Feb. 15, 2012, 14:10). |
| AMA | FESY. Acronym Geek. February 15, 2012, 14:10. Available at: http://www.acronymgeek.com/FESY. Accessed February 15, 2012, 14:10. |