| APA | OM. (2012, February 14). In Acronym Geek. Retrieved 06:21, February 14, 2012, from http://www.acronymgeek.com/OM |
| MLA | "OM." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/OM>. |
| MHRA | 'OM', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/OM> [accessed 14 February 2012] |
| Chicago | "OM", http://www.acronymgeek.com/OM (accessed February 14, 2012). |
| CBE/CSE | OM [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/OM. |
| Bluebook | OM, http://www.acronymgeek.com/OM (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OM, http://www.acronymgeek.com/OM (optional description here) (as of Feb. 14, 2012, 06:21). |
| AMA | OM. Acronym Geek. February 14, 2012, 06:21. Available at: http://www.acronymgeek.com/OM. Accessed February 14, 2012, 06:21. |