| APA | HHELS. (2012, February 12). In Acronym Geek. Retrieved 10:55, February 12, 2012, from http://www.acronymgeek.com/HHELS |
| MLA | "HHELS." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/HHELS>. |
| MHRA | 'HHELS', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/HHELS> [accessed 12 February 2012] |
| Chicago | "HHELS", http://www.acronymgeek.com/HHELS (accessed February 12, 2012). |
| CBE/CSE | HHELS [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/HHELS. |
| Bluebook | HHELS, http://www.acronymgeek.com/HHELS (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HHELS, http://www.acronymgeek.com/HHELS (optional description here) (as of Feb. 12, 2012, 10:55). |
| AMA | HHELS. Acronym Geek. February 12, 2012, 10:55. Available at: http://www.acronymgeek.com/HHELS. Accessed February 12, 2012, 10:55. |