| APA | HAYC. (2012, February 16). In Acronym Geek. Retrieved 01:51, February 16, 2012, from http://www.acronymgeek.com/HAYC |
| MLA | "HAYC." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/HAYC>. |
| MHRA | 'HAYC', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/HAYC> [accessed 16 February 2012] |
| Chicago | "HAYC", http://www.acronymgeek.com/HAYC (accessed February 16, 2012). |
| CBE/CSE | HAYC [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/HAYC. |
| Bluebook | HAYC, http://www.acronymgeek.com/HAYC (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HAYC, http://www.acronymgeek.com/HAYC (optional description here) (as of Feb. 16, 2012, 01:51). |
| AMA | HAYC. Acronym Geek. February 16, 2012, 01:51. Available at: http://www.acronymgeek.com/HAYC. Accessed February 16, 2012, 01:51. |