| APA | HEG. (2012, February 14). In Acronym Geek. Retrieved 04:30, February 14, 2012, from http://www.acronymgeek.com/HEG |
| MLA | "HEG." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HEG>. |
| MHRA | 'HEG', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HEG> [accessed 14 February 2012] |
| Chicago | "HEG", http://www.acronymgeek.com/HEG (accessed February 14, 2012). |
| CBE/CSE | HEG [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HEG. |
| Bluebook | HEG, http://www.acronymgeek.com/HEG (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HEG, http://www.acronymgeek.com/HEG (optional description here) (as of Feb. 14, 2012, 04:30). |
| AMA | HEG. Acronym Geek. February 14, 2012, 04:30. Available at: http://www.acronymgeek.com/HEG. Accessed February 14, 2012, 04:30. |