| APA | EYN. (2012, February 10). In Acronym Geek. Retrieved 17:09, February 10, 2012, from http://www.acronymgeek.com/EYN |
| MLA | "EYN." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/EYN>. |
| MHRA | 'EYN', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/EYN> [accessed 10 February 2012] |
| Chicago | "EYN", http://www.acronymgeek.com/EYN (accessed February 10, 2012). |
| CBE/CSE | EYN [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/EYN. |
| Bluebook | EYN, http://www.acronymgeek.com/EYN (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EYN, http://www.acronymgeek.com/EYN (optional description here) (as of Feb. 10, 2012, 17:09). |
| AMA | EYN. Acronym Geek. February 10, 2012, 17:09. Available at: http://www.acronymgeek.com/EYN. Accessed February 10, 2012, 17:09. |