| APA | FEX. (2012, February 11). In Acronym Geek. Retrieved 06:55, February 11, 2012, from http://www.acronymgeek.com/FEX |
| MLA | "FEX." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/FEX>. |
| MHRA | 'FEX', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/FEX> [accessed 11 February 2012] |
| Chicago | "FEX", http://www.acronymgeek.com/FEX (accessed February 11, 2012). |
| CBE/CSE | FEX [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/FEX. |
| Bluebook | FEX, http://www.acronymgeek.com/FEX (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, FEX, http://www.acronymgeek.com/FEX (optional description here) (as of Feb. 11, 2012, 06:55). |
| AMA | FEX. Acronym Geek. February 11, 2012, 06:55. Available at: http://www.acronymgeek.com/FEX. Accessed February 11, 2012, 06:55. |