| APA | OEHA. (2012, February 15). In Acronym Geek. Retrieved 11:35, February 15, 2012, from http://www.acronymgeek.com/OEHA |
| MLA | "OEHA." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/OEHA>. |
| MHRA | 'OEHA', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/OEHA> [accessed 15 February 2012] |
| Chicago | "OEHA", http://www.acronymgeek.com/OEHA (accessed February 15, 2012). |
| CBE/CSE | OEHA [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/OEHA. |
| Bluebook | OEHA, http://www.acronymgeek.com/OEHA (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OEHA, http://www.acronymgeek.com/OEHA (optional description here) (as of Feb. 15, 2012, 11:35). |
| AMA | OEHA. Acronym Geek. February 15, 2012, 11:35. Available at: http://www.acronymgeek.com/OEHA. Accessed February 15, 2012, 11:35. |