| APA | OEES. (2012, February 15). In Acronym Geek. Retrieved 07:52, February 15, 2012, from http://www.acronymgeek.com/OEES |
| MLA | "OEES." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/OEES>. |
| MHRA | 'OEES', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/OEES> [accessed 15 February 2012] |
| Chicago | "OEES", http://www.acronymgeek.com/OEES (accessed February 15, 2012). |
| CBE/CSE | OEES [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/OEES. |
| Bluebook | OEES, http://www.acronymgeek.com/OEES (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OEES, http://www.acronymgeek.com/OEES (optional description here) (as of Feb. 15, 2012, 07:52). |
| AMA | OEES. Acronym Geek. February 15, 2012, 07:52. Available at: http://www.acronymgeek.com/OEES. Accessed February 15, 2012, 07:52. |