| APA | XPD. (2012, February 9). In Acronym Geek. Retrieved 09:57, February 9, 2012, from http://www.acronymgeek.com/XPD |
| MLA | "XPD." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/XPD>. |
| MHRA | 'XPD', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/XPD> [accessed 9 February 2012] |
| Chicago | "XPD", http://www.acronymgeek.com/XPD (accessed February 9, 2012). |
| CBE/CSE | XPD [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/XPD. |
| Bluebook | XPD, http://www.acronymgeek.com/XPD (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, XPD, http://www.acronymgeek.com/XPD (optional description here) (as of Feb. 9, 2012, 09:57). |
| AMA | XPD. Acronym Geek. February 9, 2012, 09:57. Available at: http://www.acronymgeek.com/XPD. Accessed February 9, 2012, 09:57. |