| Style | Reference Text |
|---|
| APA | DR HD. (2009, November 24). In All Acronyms. Retrieved 01:18, November 24, 2009, from http://www.all-acronyms.com/cat/0/DR+HD |
| MLA | "DR HD." All Acronyms. 24 Nov 2009, 01:18. All Acronyms. 24 Nov 2009 <http://www.all-acronyms.com/cat/0/DR+HD>. |
| MHRA | 'DR HD', All Acronyms, 24 November 2009, 01:18, <http://www.all-acronyms.com/cat/0/DR+HD> [accessed 24 November 2009] |
| Chicago | "DR HD," http://www.all-acronyms.com/cat/0/DR+HD (accessed November 24, 2009). |
| CBE/CSE | DR HD [Internet]. All Acronyms; 2009 Nov 24, 01:18 [cited 2009 Nov 24]. Available from: http://www.all-acronyms.com/cat/0/DR+HD. |
| Bluebook | DR HD, http://www.all-acronyms.com/cat/0/DR+HD (last visited November 24, 2009). |
| Bluebook: Harvard JOLT | See All Acronyms, DR HD, http://www.all-acronyms.com/cat/0/DR+HD (optional description here) (as of Nov. 24, 2009, 01:18). |
| AMA | DR HD. All Acronyms. November 24, 2009, 01:18. Available at: http://www.all-acronyms.com/cat/0/DR+HD. Accessed November 24, 2009. |
Drill Head