| APA | WHDD. (2012, February 15). In Acronym Geek. Retrieved 17:59, February 15, 2012, from http://www.acronymgeek.com/WHDD |
| MLA | "WHDD." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/WHDD>. |
| MHRA | 'WHDD', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/WHDD> [accessed 15 February 2012] |
| Chicago | "WHDD", http://www.acronymgeek.com/WHDD (accessed February 15, 2012). |
| CBE/CSE | WHDD [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/WHDD. |
| Bluebook | WHDD, http://www.acronymgeek.com/WHDD (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, WHDD, http://www.acronymgeek.com/WHDD (optional description here) (as of Feb. 15, 2012, 17:59). |
| AMA | WHDD. Acronym Geek. February 15, 2012, 17:59. Available at: http://www.acronymgeek.com/WHDD. Accessed February 15, 2012, 17:59. |