| APA | F4E. (2012, February 11). In Acronym Geek. Retrieved 22:46, February 11, 2012, from http://www.acronymgeek.com/F4E |
| MLA | "F4E." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/F4E>. |
| MHRA | 'F4E', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/F4E> [accessed 11 February 2012] |
| Chicago | "F4E", http://www.acronymgeek.com/F4E (accessed February 11, 2012). |
| CBE/CSE | F4E [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/F4E. |
| Bluebook | F4E, http://www.acronymgeek.com/F4E (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, F4E, http://www.acronymgeek.com/F4E (optional description here) (as of Feb. 11, 2012, 22:46). |
| AMA | F4E. Acronym Geek. February 11, 2012, 22:46. Available at: http://www.acronymgeek.com/F4E. Accessed February 11, 2012, 22:46. |