| APA | FOSY. (2012, February 14). In Acronym Geek. Retrieved 18:09, February 14, 2012, from http://www.acronymgeek.com/FOSY |
| MLA | "FOSY." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/FOSY>. |
| MHRA | 'FOSY', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/FOSY> [accessed 14 February 2012] |
| Chicago | "FOSY", http://www.acronymgeek.com/FOSY (accessed February 14, 2012). |
| CBE/CSE | FOSY [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/FOSY. |
| Bluebook | FOSY, http://www.acronymgeek.com/FOSY (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, FOSY, http://www.acronymgeek.com/FOSY (optional description here) (as of Feb. 14, 2012, 18:09). |
| AMA | FOSY. Acronym Geek. February 14, 2012, 18:09. Available at: http://www.acronymgeek.com/FOSY. Accessed February 14, 2012, 18:09. |