| APA | DHKO. (2012, February 15). In Acronym Geek. Retrieved 17:54, February 15, 2012, from http://www.acronymgeek.com/DHKO |
| MLA | "DHKO." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/DHKO>. |
| MHRA | 'DHKO', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/DHKO> [accessed 15 February 2012] |
| Chicago | "DHKO", http://www.acronymgeek.com/DHKO (accessed February 15, 2012). |
| CBE/CSE | DHKO [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/DHKO. |
| Bluebook | DHKO, http://www.acronymgeek.com/DHKO (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DHKO, http://www.acronymgeek.com/DHKO (optional description here) (as of Feb. 15, 2012, 17:54). |
| AMA | DHKO. Acronym Geek. February 15, 2012, 17:54. Available at: http://www.acronymgeek.com/DHKO. Accessed February 15, 2012, 17:54. |