| APA | DR HD. (2012, February 11). In Acronym Geek. Retrieved 19:16, February 11, 2012, from http://www.acronymgeek.com/DR HD |
| MLA | "DR HD." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/DR HD>. |
| MHRA | 'DR HD', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/DR HD> [accessed 11 February 2012] |
| Chicago | "DR HD", http://www.acronymgeek.com/DR HD (accessed February 11, 2012). |
| CBE/CSE | DR HD [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/DR HD. |
| Bluebook | DR HD, http://www.acronymgeek.com/DR HD (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DR HD, http://www.acronymgeek.com/DR HD (optional description here) (as of Feb. 11, 2012, 19:16). |
| AMA | DR HD. Acronym Geek. February 11, 2012, 19:16. Available at: http://www.acronymgeek.com/DR HD. Accessed February 11, 2012, 19:16. |