| APA | HGSU. (2012, February 14). In Acronym Geek. Retrieved 14:26, February 14, 2012, from http://www.acronymgeek.com/HGSU |
| MLA | "HGSU." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HGSU>. |
| MHRA | 'HGSU', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HGSU> [accessed 14 February 2012] |
| Chicago | "HGSU", http://www.acronymgeek.com/HGSU (accessed February 14, 2012). |
| CBE/CSE | HGSU [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HGSU. |
| Bluebook | HGSU, http://www.acronymgeek.com/HGSU (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HGSU, http://www.acronymgeek.com/HGSU (optional description here) (as of Feb. 14, 2012, 14:26). |
| AMA | HGSU. Acronym Geek. February 14, 2012, 14:26. Available at: http://www.acronymgeek.com/HGSU. Accessed February 14, 2012, 14:26. |