| APA | XTPA. (2012, February 16). In Acronym Geek. Retrieved 02:28, February 16, 2012, from http://www.acronymgeek.com/XTPA |
| MLA | "XTPA." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/XTPA>. |
| MHRA | 'XTPA', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/XTPA> [accessed 16 February 2012] |
| Chicago | "XTPA", http://www.acronymgeek.com/XTPA (accessed February 16, 2012). |
| CBE/CSE | XTPA [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/XTPA. |
| Bluebook | XTPA, http://www.acronymgeek.com/XTPA (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, XTPA, http://www.acronymgeek.com/XTPA (optional description here) (as of Feb. 16, 2012, 02:28). |
| AMA | XTPA. Acronym Geek. February 16, 2012, 02:28. Available at: http://www.acronymgeek.com/XTPA. Accessed February 16, 2012, 02:28. |