| APA | HLHS. (2012, February 17). In Acronym Geek. Retrieved 08:10, February 17, 2012, from http://www.acronymgeek.com/HLHS |
| MLA | "HLHS." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/HLHS>. |
| MHRA | 'HLHS', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/HLHS> [accessed 17 February 2012] |
| Chicago | "HLHS", http://www.acronymgeek.com/HLHS (accessed February 17, 2012). |
| CBE/CSE | HLHS [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/HLHS. |
| Bluebook | HLHS, http://www.acronymgeek.com/HLHS (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HLHS, http://www.acronymgeek.com/HLHS (optional description here) (as of Feb. 17, 2012, 08:10). |
| AMA | HLHS. Acronym Geek. February 17, 2012, 08:10. Available at: http://www.acronymgeek.com/HLHS. Accessed February 17, 2012, 08:10. |