| APA | HHH. (2012, February 10). In Acronym Geek. Retrieved 10:51, February 10, 2012, from http://www.acronymgeek.com/HHH |
| MLA | "HHH." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/HHH>. |
| MHRA | 'HHH', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/HHH> [accessed 10 February 2012] |
| Chicago | "HHH", http://www.acronymgeek.com/HHH (accessed February 10, 2012). |
| CBE/CSE | HHH [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/HHH. |
| Bluebook | HHH, http://www.acronymgeek.com/HHH (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HHH, http://www.acronymgeek.com/HHH (optional description here) (as of Feb. 10, 2012, 10:51). |
| AMA | HHH. Acronym Geek. February 10, 2012, 10:51. Available at: http://www.acronymgeek.com/HHH. Accessed February 10, 2012, 10:51. |