| APA | XDHU. (2012, February 16). In Acronym Geek. Retrieved 23:02, February 16, 2012, from http://www.acronymgeek.com/XDHU |
| MLA | "XDHU." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/XDHU>. |
| MHRA | 'XDHU', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/XDHU> [accessed 16 February 2012] |
| Chicago | "XDHU", http://www.acronymgeek.com/XDHU (accessed February 16, 2012). |
| CBE/CSE | XDHU [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/XDHU. |
| Bluebook | XDHU, http://www.acronymgeek.com/XDHU (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, XDHU, http://www.acronymgeek.com/XDHU (optional description here) (as of Feb. 16, 2012, 23:02). |
| AMA | XDHU. Acronym Geek. February 16, 2012, 23:02. Available at: http://www.acronymgeek.com/XDHU. Accessed February 16, 2012, 23:02. |