| APA | HWD. (2012, February 13). In Acronym Geek. Retrieved 23:28, February 13, 2012, from http://www.acronymgeek.com/HWD |
| MLA | "HWD." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/HWD>. |
| MHRA | 'HWD', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/HWD> [accessed 13 February 2012] |
| Chicago | "HWD", http://www.acronymgeek.com/HWD (accessed February 13, 2012). |
| CBE/CSE | HWD [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/HWD. |
| Bluebook | HWD, http://www.acronymgeek.com/HWD (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HWD, http://www.acronymgeek.com/HWD (optional description here) (as of Feb. 13, 2012, 23:28). |
| AMA | HWD. Acronym Geek. February 13, 2012, 23:28. Available at: http://www.acronymgeek.com/HWD. Accessed February 13, 2012, 23:28. |