| APA | HBGU. (2012, February 15). In Acronym Geek. Retrieved 11:23, February 15, 2012, from http://www.acronymgeek.com/HBGU |
| MLA | "HBGU." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HBGU>. |
| MHRA | 'HBGU', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HBGU> [accessed 15 February 2012] |
| Chicago | "HBGU", http://www.acronymgeek.com/HBGU (accessed February 15, 2012). |
| CBE/CSE | HBGU [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HBGU. |
| Bluebook | HBGU, http://www.acronymgeek.com/HBGU (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HBGU, http://www.acronymgeek.com/HBGU (optional description here) (as of Feb. 15, 2012, 11:23). |
| AMA | HBGU. Acronym Geek. February 15, 2012, 11:23. Available at: http://www.acronymgeek.com/HBGU. Accessed February 15, 2012, 11:23. |