| APA | HIUA. (2012, February 14). In Acronym Geek. Retrieved 23:24, February 14, 2012, from http://www.acronymgeek.com/HIUA |
| MLA | "HIUA." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HIUA>. |
| MHRA | 'HIUA', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HIUA> [accessed 14 February 2012] |
| Chicago | "HIUA", http://www.acronymgeek.com/HIUA (accessed February 14, 2012). |
| CBE/CSE | HIUA [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HIUA. |
| Bluebook | HIUA, http://www.acronymgeek.com/HIUA (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HIUA, http://www.acronymgeek.com/HIUA (optional description here) (as of Feb. 14, 2012, 23:24). |
| AMA | HIUA. Acronym Geek. February 14, 2012, 23:24. Available at: http://www.acronymgeek.com/HIUA. Accessed February 14, 2012, 23:24. |