| APA | HHEG. (2012, February 15). In Acronym Geek. Retrieved 10:53, February 15, 2012, from http://www.acronymgeek.com/HHEG |
| MLA | "HHEG." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HHEG>. |
| MHRA | 'HHEG', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HHEG> [accessed 15 February 2012] |
| Chicago | "HHEG", http://www.acronymgeek.com/HHEG (accessed February 15, 2012). |
| CBE/CSE | HHEG [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HHEG. |
| Bluebook | HHEG, http://www.acronymgeek.com/HHEG (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HHEG, http://www.acronymgeek.com/HHEG (optional description here) (as of Feb. 15, 2012, 10:53). |
| AMA | HHEG. Acronym Geek. February 15, 2012, 10:53. Available at: http://www.acronymgeek.com/HHEG. Accessed February 15, 2012, 10:53. |