| APA | HSYH. (2012, February 14). In Acronym Geek. Retrieved 13:07, February 14, 2012, from http://www.acronymgeek.com/HSYH |
| MLA | "HSYH." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HSYH>. |
| MHRA | 'HSYH', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HSYH> [accessed 14 February 2012] |
| Chicago | "HSYH", http://www.acronymgeek.com/HSYH (accessed February 14, 2012). |
| CBE/CSE | HSYH [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HSYH. |
| Bluebook | HSYH, http://www.acronymgeek.com/HSYH (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HSYH, http://www.acronymgeek.com/HSYH (optional description here) (as of Feb. 14, 2012, 13:07). |
| AMA | HSYH. Acronym Geek. February 14, 2012, 13:07. Available at: http://www.acronymgeek.com/HSYH. Accessed February 14, 2012, 13:07. |