| APA | HLEU. (2012, February 16). In Acronym Geek. Retrieved 04:57, February 16, 2012, from http://www.acronymgeek.com/HLEU |
| MLA | "HLEU." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/HLEU>. |
| MHRA | 'HLEU', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/HLEU> [accessed 16 February 2012] |
| Chicago | "HLEU", http://www.acronymgeek.com/HLEU (accessed February 16, 2012). |
| CBE/CSE | HLEU [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/HLEU. |
| Bluebook | HLEU, http://www.acronymgeek.com/HLEU (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HLEU, http://www.acronymgeek.com/HLEU (optional description here) (as of Feb. 16, 2012, 04:57). |
| AMA | HLEU. Acronym Geek. February 16, 2012, 04:57. Available at: http://www.acronymgeek.com/HLEU. Accessed February 16, 2012, 04:57. |