| APA | HSYA. (2012, February 15). In Acronym Geek. Retrieved 22:13, February 15, 2012, from http://www.acronymgeek.com/HSYA |
| MLA | "HSYA." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HSYA>. |
| MHRA | 'HSYA', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HSYA> [accessed 15 February 2012] |
| Chicago | "HSYA", http://www.acronymgeek.com/HSYA (accessed February 15, 2012). |
| CBE/CSE | HSYA [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HSYA. |
| Bluebook | HSYA, http://www.acronymgeek.com/HSYA (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HSYA, http://www.acronymgeek.com/HSYA (optional description here) (as of Feb. 15, 2012, 22:13). |
| AMA | HSYA. Acronym Geek. February 15, 2012, 22:13. Available at: http://www.acronymgeek.com/HSYA. Accessed February 15, 2012, 22:13. |