| APA | HHGB. (2012, February 16). In Acronym Geek. Retrieved 07:49, February 16, 2012, from http://www.acronymgeek.com/HHGB |
| MLA | "HHGB." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/HHGB>. |
| MHRA | 'HHGB', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/HHGB> [accessed 16 February 2012] |
| Chicago | "HHGB", http://www.acronymgeek.com/HHGB (accessed February 16, 2012). |
| CBE/CSE | HHGB [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/HHGB. |
| Bluebook | HHGB, http://www.acronymgeek.com/HHGB (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HHGB, http://www.acronymgeek.com/HHGB (optional description here) (as of Feb. 16, 2012, 07:49). |
| AMA | HHGB. Acronym Geek. February 16, 2012, 07:49. Available at: http://www.acronymgeek.com/HHGB. Accessed February 16, 2012, 07:49. |