| APA | ESOD. (2012, February 15). In Acronym Geek. Retrieved 11:13, February 15, 2012, from http://www.acronymgeek.com/ESOD |
| MLA | "ESOD." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/ESOD>. |
| MHRA | 'ESOD', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/ESOD> [accessed 15 February 2012] |
| Chicago | "ESOD", http://www.acronymgeek.com/ESOD (accessed February 15, 2012). |
| CBE/CSE | ESOD [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/ESOD. |
| Bluebook | ESOD, http://www.acronymgeek.com/ESOD (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ESOD, http://www.acronymgeek.com/ESOD (optional description here) (as of Feb. 15, 2012, 11:13). |
| AMA | ESOD. Acronym Geek. February 15, 2012, 11:13. Available at: http://www.acronymgeek.com/ESOD. Accessed February 15, 2012, 11:13. |