| APA | HIUM. (2012, February 17). In Acronym Geek. Retrieved 03:03, February 17, 2012, from http://www.acronymgeek.com/HIUM |
| MLA | "HIUM." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/HIUM>. |
| MHRA | 'HIUM', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/HIUM> [accessed 17 February 2012] |
| Chicago | "HIUM", http://www.acronymgeek.com/HIUM (accessed February 17, 2012). |
| CBE/CSE | HIUM [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/HIUM. |
| Bluebook | HIUM, http://www.acronymgeek.com/HIUM (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HIUM, http://www.acronymgeek.com/HIUM (optional description here) (as of Feb. 17, 2012, 03:03). |
| AMA | HIUM. Acronym Geek. February 17, 2012, 03:03. Available at: http://www.acronymgeek.com/HIUM. Accessed February 17, 2012, 03:03. |