| APA | EYF. (2012, February 11). In Acronym Geek. Retrieved 22:53, February 11, 2012, from http://www.acronymgeek.com/EYF |
| MLA | "EYF." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/EYF>. |
| MHRA | 'EYF', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/EYF> [accessed 11 February 2012] |
| Chicago | "EYF", http://www.acronymgeek.com/EYF (accessed February 11, 2012). |
| CBE/CSE | EYF [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/EYF. |
| Bluebook | EYF, http://www.acronymgeek.com/EYF (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EYF, http://www.acronymgeek.com/EYF (optional description here) (as of Feb. 11, 2012, 22:53). |
| AMA | EYF. Acronym Geek. February 11, 2012, 22:53. Available at: http://www.acronymgeek.com/EYF. Accessed February 11, 2012, 22:53. |