| APA | HDR. (2012, February 14). In Acronym Geek. Retrieved 01:15, February 14, 2012, from http://www.acronymgeek.com/HDR |
| MLA | "HDR." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HDR>. |
| MHRA | 'HDR', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HDR> [accessed 14 February 2012] |
| Chicago | "HDR", http://www.acronymgeek.com/HDR (accessed February 14, 2012). |
| CBE/CSE | HDR [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HDR. |
| Bluebook | HDR, http://www.acronymgeek.com/HDR (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HDR, http://www.acronymgeek.com/HDR (optional description here) (as of Feb. 14, 2012, 01:15). |
| AMA | HDR. Acronym Geek. February 14, 2012, 01:15. Available at: http://www.acronymgeek.com/HDR. Accessed February 14, 2012, 01:15. |