| APA | EYDN. (2012, February 16). In Acronym Geek. Retrieved 10:28, February 16, 2012, from http://www.acronymgeek.com/EYDN |
| MLA | "EYDN." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/EYDN>. |
| MHRA | 'EYDN', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/EYDN> [accessed 16 February 2012] |
| Chicago | "EYDN", http://www.acronymgeek.com/EYDN (accessed February 16, 2012). |
| CBE/CSE | EYDN [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/EYDN. |
| Bluebook | EYDN, http://www.acronymgeek.com/EYDN (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EYDN, http://www.acronymgeek.com/EYDN (optional description here) (as of Feb. 16, 2012, 10:28). |
| AMA | EYDN. Acronym Geek. February 16, 2012, 10:28. Available at: http://www.acronymgeek.com/EYDN. Accessed February 16, 2012, 10:28. |