| APA | E5`N. (2012, February 12). In Acronym Geek. Retrieved 13:16, February 12, 2012, from http://www.acronymgeek.com/E5`N |
| MLA | "E5`N." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/E5`N>. |
| MHRA | 'E5`N', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/E5`N> [accessed 12 February 2012] |
| Chicago | "E5`N", http://www.acronymgeek.com/E5`N (accessed February 12, 2012). |
| CBE/CSE | E5`N [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/E5`N. |
| Bluebook | E5`N, http://www.acronymgeek.com/E5`N (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, E5`N, http://www.acronymgeek.com/E5`N (optional description here) (as of Feb. 12, 2012, 13:16). |
| AMA | E5`N. Acronym Geek. February 12, 2012, 13:16. Available at: http://www.acronymgeek.com/E5`N. Accessed February 12, 2012, 13:16. |