| APA | YPH. (2012, February 13). In Acronym Geek. Retrieved 21:59, February 13, 2012, from http://www.acronymgeek.com/YPH |
| MLA | "YPH." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/YPH>. |
| MHRA | 'YPH', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/YPH> [accessed 13 February 2012] |
| Chicago | "YPH", http://www.acronymgeek.com/YPH (accessed February 13, 2012). |
| CBE/CSE | YPH [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/YPH. |
| Bluebook | YPH, http://www.acronymgeek.com/YPH (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, YPH, http://www.acronymgeek.com/YPH (optional description here) (as of Feb. 13, 2012, 21:59). |
| AMA | YPH. Acronym Geek. February 13, 2012, 21:59. Available at: http://www.acronymgeek.com/YPH. Accessed February 13, 2012, 21:59. |