| APA | HSYP. (2012, February 15). In Acronym Geek. Retrieved 12:14, February 15, 2012, from http://www.acronymgeek.com/HSYP |
| MLA | "HSYP." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HSYP>. |
| MHRA | 'HSYP', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HSYP> [accessed 15 February 2012] |
| Chicago | "HSYP", http://www.acronymgeek.com/HSYP (accessed February 15, 2012). |
| CBE/CSE | HSYP [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HSYP. |
| Bluebook | HSYP, http://www.acronymgeek.com/HSYP (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HSYP, http://www.acronymgeek.com/HSYP (optional description here) (as of Feb. 15, 2012, 12:14). |
| AMA | HSYP. Acronym Geek. February 15, 2012, 12:14. Available at: http://www.acronymgeek.com/HSYP. Accessed February 15, 2012, 12:14. |