| APA | OIEM. (2012, February 15). In Acronym Geek. Retrieved 19:05, February 15, 2012, from http://www.acronymgeek.com/OIEM |
| MLA | "OIEM." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/OIEM>. |
| MHRA | 'OIEM', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/OIEM> [accessed 15 February 2012] |
| Chicago | "OIEM", http://www.acronymgeek.com/OIEM (accessed February 15, 2012). |
| CBE/CSE | OIEM [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/OIEM. |
| Bluebook | OIEM, http://www.acronymgeek.com/OIEM (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OIEM, http://www.acronymgeek.com/OIEM (optional description here) (as of Feb. 15, 2012, 19:05). |
| AMA | OIEM. Acronym Geek. February 15, 2012, 19:05. Available at: http://www.acronymgeek.com/OIEM. Accessed February 15, 2012, 19:05. |