| APA | E4OD. (2012, February 10). In Acronym Geek. Retrieved 08:38, February 10, 2012, from http://www.acronymgeek.com/E4OD |
| MLA | "E4OD." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/E4OD>. |
| MHRA | 'E4OD', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/E4OD> [accessed 10 February 2012] |
| Chicago | "E4OD", http://www.acronymgeek.com/E4OD (accessed February 10, 2012). |
| CBE/CSE | E4OD [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/E4OD. |
| Bluebook | E4OD, http://www.acronymgeek.com/E4OD (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, E4OD, http://www.acronymgeek.com/E4OD (optional description here) (as of Feb. 10, 2012, 08:38). |
| AMA | E4OD. Acronym Geek. February 10, 2012, 08:38. Available at: http://www.acronymgeek.com/E4OD. Accessed February 10, 2012, 08:38. |