| APA | OEIM. (2012, February 17). In Acronym Geek. Retrieved 00:54, February 17, 2012, from http://www.acronymgeek.com/OEIM |
| MLA | "OEIM." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/OEIM>. |
| MHRA | 'OEIM', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/OEIM> [accessed 17 February 2012] |
| Chicago | "OEIM", http://www.acronymgeek.com/OEIM (accessed February 17, 2012). |
| CBE/CSE | OEIM [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/OEIM. |
| Bluebook | OEIM, http://www.acronymgeek.com/OEIM (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OEIM, http://www.acronymgeek.com/OEIM (optional description here) (as of Feb. 17, 2012, 00:54). |
| AMA | OEIM. Acronym Geek. February 17, 2012, 00:54. Available at: http://www.acronymgeek.com/OEIM. Accessed February 17, 2012, 00:54. |