| APA | HIYS. (2012, February 15). In Acronym Geek. Retrieved 20:37, February 15, 2012, from http://www.acronymgeek.com/HIYS |
| MLA | "HIYS." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HIYS>. |
| MHRA | 'HIYS', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HIYS> [accessed 15 February 2012] |
| Chicago | "HIYS", http://www.acronymgeek.com/HIYS (accessed February 15, 2012). |
| CBE/CSE | HIYS [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HIYS. |
| Bluebook | HIYS, http://www.acronymgeek.com/HIYS (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HIYS, http://www.acronymgeek.com/HIYS (optional description here) (as of Feb. 15, 2012, 20:37). |
| AMA | HIYS. Acronym Geek. February 15, 2012, 20:37. Available at: http://www.acronymgeek.com/HIYS. Accessed February 15, 2012, 20:37. |