| APA | HHWU. (2012, February 17). In Acronym Geek. Retrieved 01:22, February 17, 2012, from http://www.acronymgeek.com/HHWU |
| MLA | "HHWU." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/HHWU>. |
| MHRA | 'HHWU', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/HHWU> [accessed 17 February 2012] |
| Chicago | "HHWU", http://www.acronymgeek.com/HHWU (accessed February 17, 2012). |
| CBE/CSE | HHWU [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/HHWU. |
| Bluebook | HHWU, http://www.acronymgeek.com/HHWU (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HHWU, http://www.acronymgeek.com/HHWU (optional description here) (as of Feb. 17, 2012, 01:22). |
| AMA | HHWU. Acronym Geek. February 17, 2012, 01:22. Available at: http://www.acronymgeek.com/HHWU. Accessed February 17, 2012, 01:22. |