| APA | ES/EA. (2012, February 12). In Acronym Geek. Retrieved 07:50, February 12, 2012, from http://www.acronymgeek.com/ES/EA |
| MLA | "ES/EA." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/ES/EA>. |
| MHRA | 'ES/EA', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/ES/EA> [accessed 12 February 2012] |
| Chicago | "ES/EA", http://www.acronymgeek.com/ES/EA (accessed February 12, 2012). |
| CBE/CSE | ES/EA [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/ES/EA. |
| Bluebook | ES/EA, http://www.acronymgeek.com/ES/EA (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ES/EA, http://www.acronymgeek.com/ES/EA (optional description here) (as of Feb. 12, 2012, 07:50). |
| AMA | ES/EA. Acronym Geek. February 12, 2012, 07:50. Available at: http://www.acronymgeek.com/ES/EA. Accessed February 12, 2012, 07:50. |