| APA | FLX. (2012, February 13). In Acronym Geek. Retrieved 20:54, February 13, 2012, from http://www.acronymgeek.com/FLX |
| MLA | "FLX." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/FLX>. |
| MHRA | 'FLX', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/FLX> [accessed 13 February 2012] |
| Chicago | "FLX", http://www.acronymgeek.com/FLX (accessed February 13, 2012). |
| CBE/CSE | FLX [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/FLX. |
| Bluebook | FLX, http://www.acronymgeek.com/FLX (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, FLX, http://www.acronymgeek.com/FLX (optional description here) (as of Feb. 13, 2012, 20:54). |
| AMA | FLX. Acronym Geek. February 13, 2012, 20:54. Available at: http://www.acronymgeek.com/FLX. Accessed February 13, 2012, 20:54. |