| APA | FESO. (2012, February 16). In Acronym Geek. Retrieved 06:40, February 16, 2012, from http://www.acronymgeek.com/FESO |
| MLA | "FESO." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/FESO>. |
| MHRA | 'FESO', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/FESO> [accessed 16 February 2012] |
| Chicago | "FESO", http://www.acronymgeek.com/FESO (accessed February 16, 2012). |
| CBE/CSE | FESO [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/FESO. |
| Bluebook | FESO, http://www.acronymgeek.com/FESO (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, FESO, http://www.acronymgeek.com/FESO (optional description here) (as of Feb. 16, 2012, 06:40). |
| AMA | FESO. Acronym Geek. February 16, 2012, 06:40. Available at: http://www.acronymgeek.com/FESO. Accessed February 16, 2012, 06:40. |