| APA | HLE. (2012, February 13). In Acronym Geek. Retrieved 21:03, February 13, 2012, from http://www.acronymgeek.com/HLE |
| MLA | "HLE." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/HLE>. |
| MHRA | 'HLE', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/HLE> [accessed 13 February 2012] |
| Chicago | "HLE", http://www.acronymgeek.com/HLE (accessed February 13, 2012). |
| CBE/CSE | HLE [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/HLE. |
| Bluebook | HLE, http://www.acronymgeek.com/HLE (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HLE, http://www.acronymgeek.com/HLE (optional description here) (as of Feb. 13, 2012, 21:03). |
| AMA | HLE. Acronym Geek. February 13, 2012, 21:03. Available at: http://www.acronymgeek.com/HLE. Accessed February 13, 2012, 21:03. |