| APA | HLX. (2012, February 12). In Acronym Geek. Retrieved 07:08, February 12, 2012, from http://www.acronymgeek.com/HLX |
| MLA | "HLX." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/HLX>. |
| MHRA | 'HLX', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/HLX> [accessed 12 February 2012] |
| Chicago | "HLX", http://www.acronymgeek.com/HLX (accessed February 12, 2012). |
| CBE/CSE | HLX [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/HLX. |
| Bluebook | HLX, http://www.acronymgeek.com/HLX (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HLX, http://www.acronymgeek.com/HLX (optional description here) (as of Feb. 12, 2012, 07:08). |
| AMA | HLX. Acronym Geek. February 12, 2012, 07:08. Available at: http://www.acronymgeek.com/HLX. Accessed February 12, 2012, 07:08. |