| APA | OYHA. (2012, February 17). In Acronym Geek. Retrieved 03:55, February 17, 2012, from http://www.acronymgeek.com/OYHA |
| MLA | "OYHA." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/OYHA>. |
| MHRA | 'OYHA', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/OYHA> [accessed 17 February 2012] |
| Chicago | "OYHA", http://www.acronymgeek.com/OYHA (accessed February 17, 2012). |
| CBE/CSE | OYHA [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/OYHA. |
| Bluebook | OYHA, http://www.acronymgeek.com/OYHA (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OYHA, http://www.acronymgeek.com/OYHA (optional description here) (as of Feb. 17, 2012, 03:55). |
| AMA | OYHA. Acronym Geek. February 17, 2012, 03:55. Available at: http://www.acronymgeek.com/OYHA. Accessed February 17, 2012, 03:55. |