| APA | HDWD. (2012, February 15). In Acronym Geek. Retrieved 23:11, February 15, 2012, from http://www.acronymgeek.com/HDWD |
| MLA | "HDWD." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HDWD>. |
| MHRA | 'HDWD', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HDWD> [accessed 15 February 2012] |
| Chicago | "HDWD", http://www.acronymgeek.com/HDWD (accessed February 15, 2012). |
| CBE/CSE | HDWD [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HDWD. |
| Bluebook | HDWD, http://www.acronymgeek.com/HDWD (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HDWD, http://www.acronymgeek.com/HDWD (optional description here) (as of Feb. 15, 2012, 23:11). |
| AMA | HDWD. Acronym Geek. February 15, 2012, 23:11. Available at: http://www.acronymgeek.com/HDWD. Accessed February 15, 2012, 23:11. |