| APA | HDX. (2012, February 15). In Acronym Geek. Retrieved 03:53, February 15, 2012, from http://www.acronymgeek.com/HDX |
| MLA | "HDX." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HDX>. |
| MHRA | 'HDX', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HDX> [accessed 15 February 2012] |
| Chicago | "HDX", http://www.acronymgeek.com/HDX (accessed February 15, 2012). |
| CBE/CSE | HDX [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HDX. |
| Bluebook | HDX, http://www.acronymgeek.com/HDX (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HDX, http://www.acronymgeek.com/HDX (optional description here) (as of Feb. 15, 2012, 03:53). |
| AMA | HDX. Acronym Geek. February 15, 2012, 03:53. Available at: http://www.acronymgeek.com/HDX. Accessed February 15, 2012, 03:53. |