| APA | HHGT. (2012, February 15). In Acronym Geek. Retrieved 02:28, February 15, 2012, from http://www.acronymgeek.com/HHGT |
| MLA | "HHGT." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HHGT>. |
| MHRA | 'HHGT', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HHGT> [accessed 15 February 2012] |
| Chicago | "HHGT", http://www.acronymgeek.com/HHGT (accessed February 15, 2012). |
| CBE/CSE | HHGT [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HHGT. |
| Bluebook | HHGT, http://www.acronymgeek.com/HHGT (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HHGT, http://www.acronymgeek.com/HHGT (optional description here) (as of Feb. 15, 2012, 02:28). |
| AMA | HHGT. Acronym Geek. February 15, 2012, 02:28. Available at: http://www.acronymgeek.com/HHGT. Accessed February 15, 2012, 02:28. |