| APA | HGU. (2012, February 14). In Acronym Geek. Retrieved 19:14, February 14, 2012, from http://www.acronymgeek.com/HGU |
| MLA | "HGU." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HGU>. |
| MHRA | 'HGU', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HGU> [accessed 14 February 2012] |
| Chicago | "HGU", http://www.acronymgeek.com/HGU (accessed February 14, 2012). |
| CBE/CSE | HGU [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HGU. |
| Bluebook | HGU, http://www.acronymgeek.com/HGU (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HGU, http://www.acronymgeek.com/HGU (optional description here) (as of Feb. 14, 2012, 19:14). |
| AMA | HGU. Acronym Geek. February 14, 2012, 19:14. Available at: http://www.acronymgeek.com/HGU. Accessed February 14, 2012, 19:14. |