| APA | HHGTTG. (2012, February 12). In Acronym Geek. Retrieved 15:32, February 12, 2012, from http://www.acronymgeek.com/HHGTTG |
| MLA | "HHGTTG." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/HHGTTG>. |
| MHRA | 'HHGTTG', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/HHGTTG> [accessed 12 February 2012] |
| Chicago | "HHGTTG", http://www.acronymgeek.com/HHGTTG (accessed February 12, 2012). |
| CBE/CSE | HHGTTG [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/HHGTTG. |
| Bluebook | HHGTTG, http://www.acronymgeek.com/HHGTTG (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HHGTTG, http://www.acronymgeek.com/HHGTTG (optional description here) (as of Feb. 12, 2012, 15:32). |
| AMA | HHGTTG. Acronym Geek. February 12, 2012, 15:32. Available at: http://www.acronymgeek.com/HHGTTG. Accessed February 12, 2012, 15:32. |