| APA | HVYS. (2012, February 17). In Acronym Geek. Retrieved 00:54, February 17, 2012, from http://www.acronymgeek.com/HVYS |
| MLA | "HVYS." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/HVYS>. |
| MHRA | 'HVYS', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/HVYS> [accessed 17 February 2012] |
| Chicago | "HVYS", http://www.acronymgeek.com/HVYS (accessed February 17, 2012). |
| CBE/CSE | HVYS [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/HVYS. |
| Bluebook | HVYS, http://www.acronymgeek.com/HVYS (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HVYS, http://www.acronymgeek.com/HVYS (optional description here) (as of Feb. 17, 2012, 00:54). |
| AMA | HVYS. Acronym Geek. February 17, 2012, 00:54. Available at: http://www.acronymgeek.com/HVYS. Accessed February 17, 2012, 00:54. |