| APA | DHCO. (2012, February 16). In Acronym Geek. Retrieved 05:59, February 16, 2012, from http://www.acronymgeek.com/DHCO |
| MLA | "DHCO." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/DHCO>. |
| MHRA | 'DHCO', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/DHCO> [accessed 16 February 2012] |
| Chicago | "DHCO", http://www.acronymgeek.com/DHCO (accessed February 16, 2012). |
| CBE/CSE | DHCO [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/DHCO. |
| Bluebook | DHCO, http://www.acronymgeek.com/DHCO (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DHCO, http://www.acronymgeek.com/DHCO (optional description here) (as of Feb. 16, 2012, 05:59). |
| AMA | DHCO. Acronym Geek. February 16, 2012, 05:59. Available at: http://www.acronymgeek.com/DHCO. Accessed February 16, 2012, 05:59. |