| APA | HBGA. (2012, February 17). In Acronym Geek. Retrieved 03:51, February 17, 2012, from http://www.acronymgeek.com/HBGA |
| MLA | "HBGA." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/HBGA>. |
| MHRA | 'HBGA', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/HBGA> [accessed 17 February 2012] |
| Chicago | "HBGA", http://www.acronymgeek.com/HBGA (accessed February 17, 2012). |
| CBE/CSE | HBGA [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/HBGA. |
| Bluebook | HBGA, http://www.acronymgeek.com/HBGA (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HBGA, http://www.acronymgeek.com/HBGA (optional description here) (as of Feb. 17, 2012, 03:51). |
| AMA | HBGA. Acronym Geek. February 17, 2012, 03:51. Available at: http://www.acronymgeek.com/HBGA. Accessed February 17, 2012, 03:51. |