| APA | XHPD. (2012, February 14). In Acronym Geek. Retrieved 20:09, February 14, 2012, from http://www.acronymgeek.com/XHPD |
| MLA | "XHPD." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/XHPD>. |
| MHRA | 'XHPD', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/XHPD> [accessed 14 February 2012] |
| Chicago | "XHPD", http://www.acronymgeek.com/XHPD (accessed February 14, 2012). |
| CBE/CSE | XHPD [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/XHPD. |
| Bluebook | XHPD, http://www.acronymgeek.com/XHPD (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, XHPD, http://www.acronymgeek.com/XHPD (optional description here) (as of Feb. 14, 2012, 20:09). |
| AMA | XHPD. Acronym Geek. February 14, 2012, 20:09. Available at: http://www.acronymgeek.com/XHPD. Accessed February 14, 2012, 20:09. |