| APA | EES. (2012, February 14). In Acronym Geek. Retrieved 20:40, February 14, 2012, from http://www.acronymgeek.com/EES |
| MLA | "EES." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/EES>. |
| MHRA | 'EES', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/EES> [accessed 14 February 2012] |
| Chicago | "EES", http://www.acronymgeek.com/EES (accessed February 14, 2012). |
| CBE/CSE | EES [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/EES. |
| Bluebook | EES, http://www.acronymgeek.com/EES (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EES, http://www.acronymgeek.com/EES (optional description here) (as of Feb. 14, 2012, 20:40). |
| AMA | EES. Acronym Geek. February 14, 2012, 20:40. Available at: http://www.acronymgeek.com/EES. Accessed February 14, 2012, 20:40. |