| APA | OHDR. (2012, February 15). In Acronym Geek. Retrieved 23:24, February 15, 2012, from http://www.acronymgeek.com/OHDR |
| MLA | "OHDR." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/OHDR>. |
| MHRA | 'OHDR', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/OHDR> [accessed 15 February 2012] |
| Chicago | "OHDR", http://www.acronymgeek.com/OHDR (accessed February 15, 2012). |
| CBE/CSE | OHDR [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/OHDR. |
| Bluebook | OHDR, http://www.acronymgeek.com/OHDR (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OHDR, http://www.acronymgeek.com/OHDR (optional description here) (as of Feb. 15, 2012, 23:24). |
| AMA | OHDR. Acronym Geek. February 15, 2012, 23:24. Available at: http://www.acronymgeek.com/OHDR. Accessed February 15, 2012, 23:24. |