| APA | HXP. (2012, February 14). In Acronym Geek. Retrieved 11:08, February 14, 2012, from http://www.acronymgeek.com/HXP |
| MLA | "HXP." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HXP>. |
| MHRA | 'HXP', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HXP> [accessed 14 February 2012] |
| Chicago | "HXP", http://www.acronymgeek.com/HXP (accessed February 14, 2012). |
| CBE/CSE | HXP [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HXP. |
| Bluebook | HXP, http://www.acronymgeek.com/HXP (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HXP, http://www.acronymgeek.com/HXP (optional description here) (as of Feb. 14, 2012, 11:08). |
| AMA | HXP. Acronym Geek. February 14, 2012, 11:08. Available at: http://www.acronymgeek.com/HXP. Accessed February 14, 2012, 11:08. |