| APA | HYA. (2012, February 13). In Acronym Geek. Retrieved 21:36, February 13, 2012, from http://www.acronymgeek.com/HYA |
| MLA | "HYA." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/HYA>. |
| MHRA | 'HYA', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/HYA> [accessed 13 February 2012] |
| Chicago | "HYA", http://www.acronymgeek.com/HYA (accessed February 13, 2012). |
| CBE/CSE | HYA [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/HYA. |
| Bluebook | HYA, http://www.acronymgeek.com/HYA (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HYA, http://www.acronymgeek.com/HYA (optional description here) (as of Feb. 13, 2012, 21:36). |
| AMA | HYA. Acronym Geek. February 13, 2012, 21:36. Available at: http://www.acronymgeek.com/HYA. Accessed February 13, 2012, 21:36. |